I really apologize for making this so long, but I think I can potray my thoughts and feelings the best this way. My boyfriend is my FP and I value him a lot— ranting here would do me some good.

I don't know what to do anymore, this week anxiety is getting the best of me and I have no idea who to turn to regarding this. So a few weeks back my boyfriend moved into a student home cause he goes to a school which is in another city. My abandonment issues skyrocketed ever since he left, but he visits on the weekends and we do hang out. However, I have a history of believing that everytime he spends time with his friends or pays more attention to someone else than me, that he's cheating or catching potential feelings. 

Luckily, I combated these thoughts for some time and actually ended up improving a bit— he constantly reassures me that I'm his number one, talks about our future and sends me silly videos telling me how much I mean to him and that he loves me. Me and him are part of a trio, so our best friend also constantly reassures me that he loves me and he would never cheat on me. (She and him know each other since kindergarten.)

Now here's the issue, I'm an extremely insecure person, over the year I've developed a lot of issues regarding my mental health— nothing can convince me I'm capable of being loved or that I deserve it in a way. If you were to tell me I'm amazing, talented, beautiful, special, maybe even gifted, I'd doubt it and get rather uncomfortable. It's jsut unreal to me that others around me appreciate me.

Back to my relationship. Around two weeks ago my boyfriend talked to me about two guys he met in class, we'll call them A and B. A to me seemed like a good guy in the beginning from what I've heard, however, a couple of days later I receive a screenshot from my boyfriend where A is signaling a potential confession and is asking for a relationship. I'm confused, I ask my boyfriend if this guy knows we're dating and he tells me he's told him. And what do you know? A starts ignoring him after that.

This obviously didn't sit right with me and I immediately began thinking of the worst, although I quickly got over it because I knew it would be impossible for something to happen, thanks to my best friend and her comforting advice. Sounds good, right? 

Last monday I began received a message of my boyfriend saying B is sending him porn as a joke to which I obviously replied uncomfortably. Tuesday, he tells me A and B both touched and stood next to him in an inappropriate manner as he tied his shoes. I start getting uneasy the more I hear about B, because B is a bad person overall (I won't even go into what he does or has done.) 

I try telling my boyfriend to find different friends and avoid these two, as he had only told me the bad stuff about them. 'B is a walking red flag' I say, but I don't think I did a good job convincing him. Around the same time I also find out B is making inappropriate comments towards my boyfriend's body (he is transgender FTM), so I ask him if it makes him uncomfortable. All he does is tell me that he is used to being sexualized and that there is nothing he can do about it. (I know how it feels so I can resonate with him to a point.)

Wednesday was the worst, it's when I had a breakdown the moment he mentioned B again. Guilt washed over me because I got upset at the fact that B is making art for my boyfriend and picquing his interest further. However, what bothered me the most was the fact that B seemed to overstep boundaries by drawing him in an erotic way (I'm talking with a literal boner and boobs.) This began messing with me further and I eventually ended up locking myself in the bathroom and just sobbing there as thoughts coursed through my mind. It was then also made clear by him that B has a crush on him. 

Yesterday, on Friday, I felt as if the world was ending. I come home from school quite late, so I have a difficult time texting on time or just talking in general. My boyfriend and I talk for at least five minutes about our day and yadda yadda (he is back home for the weekend). Four hours pass— 12am reads the clock. Why isn't he texting me, I think to myself? Did I do something wrong? Is he just busy? Or is it.. is he going to abandon me and had found his soulmate all of a sudden? Another night with crying and tears comes around the corner. 

I receive a message from him 30 minutes later, he applogizes for not being as active with me today and then wishses me a good night. At this point I have no idea what to think anymore and my anxiety starts relentlessly gnawing at me again. I snoop around on Steam and find out he's not only been playing games with B all that time, but that B also renamed himself "Simpin' for ____ &lt;3". I'm completely furious, I don't know what to do. I've been thinking of confrontint my boyfriend but I'm scared I'm being way too possessive. Something as innocent as spending time with friends by playing games is normal, no?

I'm just lost. This week it's been horrible and I feel upset at myself for only clinging to my partner and what he is doing when he's not texting or around me. My boyfriend is very loyal, he loves me, makes a GREAT effort to show that. Our relationship is beautiful, we go on frequent dates and talk about our future when we have the time. My best friend is also here for me and tells me how lucky he is for dating me and that overall, nothing can go wrong. She advised me to strongly make an effort to get him away from B and that's what I will try. I also tell him about how I feel and even opened up about my paranoia that he'll start dating someone there and leave me. I got the reassurance and it bettered me for a while. 

Once again, I apologize that this is extremely long. But I would appreciate some advice on how to stop overthinking and how to approach my partner about this guy. He is an absolute awful person and sometimes insults my boyfriend as well, but he seems blinded by it and thinks it's all just a playful joke. Thank you in advance