First off, I know I am absolutely ridiculous for feeling this way, just need somewhere to vent. First reddit post by the way. 

I (F21) and my girlfriend (20) started dating about a year ago.  A few months ago I met a group of people who invited me into their friend group (about 5 people).  It was great at first. I loved the attention I was getting (not used to having many friends) and it felt really good to be apart of something. After about three weeks of hanging out, I introduced my girlfriend to the gang. A little background information about my girlfriend and I.....  I am an introvert. It takes me a while to become comfortable around people. My girlfriend is an extrovert. I do not know one person that does not like her. She is truly the best. 

Fast forward to today and we've all merged into one big group of friends. They are just as much her friend at this point as they are mine and that bothers me. It bothers me that they prefer her company over mine. (I know this is wrong) But I hate the fact that they know will hit HER up to hang out instead of me when I was the one that introduced them all!

I brought up to my girlfriend that I thought my friends liked her more than they liked me. I told her that they should not fuck with her as much as they fuck with me (once again, I know this is wrong) She replied with "it happens in all of my relationships" which naturally, infuriated me. She accused me of trying to draw a line between us. And causing problems that aren't even there. She thinks I'm mean for even thinking like this.

It has come to the point where I don't even want to be friends with them anymore. I don't want to hang out with them and I don't want her to hang out with them (I'd never tell her this or actually do this to her, I know she's her own individual with her own friends) 

I need tips on coping with this type of jealousy. My mind has started to make up these ridiculous situations (they like her more because they're in love with her etc.) and I don't want to start to believe them. My jealousy over this issue is going to ruin my relationship if I don't start coping with the fact that people just typically like my girlfriend more than they like me.

Any thoughts/Advice would be appreciated. 