So here's the story: I (M26) started dating a girl (23) and everything was going well for 3 months. I felt like we liked each other a lot, but I didn't dare to define our relationship because she was graduating from college soon and she might move far away for work and we were barely knowing each other. Then the day finally arrived where she got a job offer to work out of town (3-4 hrs away). btw she didn't even tell me directly about the job offer. She was talking with her friend on the phone in front of me and that is how I found out.   
Immediately after that, I got sad and we discussed our relationship. I told her that I really liked her and that I was willing to move to the city/town she was going to move in for work. I was planning on quitting my job regardless, and I don't have any attachments in the place I live in so I have that freedom. Then she reacted and started saying that I was too much for her and that I shouldn't move, that she tends to self-sabotage, that we had to live together but it wasn't gonna work... I tried to counter her arguments and the discussion ended in that she would think about it (we never yelled at each other or anything violent). That night she stayed at my place since it was late but honestly I was a bit sad with the outcome of the discussion because it seemed that she was gonna reject me.   
The next day she woke up giving me a hug and being super lovely... I felt pretty confused. The next time we meet, she (a bit high) tells me that she had thought about it and that she didn't want anything because of such and such reasons. I countered her reasons by noticing that those issues were something that could be easily managed by us having good communication (which I thought we had, while getting to know each other she told me a lot of thing about herself, her past, her childhood, that she has depression and went to therapy but then abandoned it, etc. I didn't know what BPD was at the time, and she mentioned it once but she wasn't/isn't sure she has it). My point being that she opened up a lot with me. Anyway, that day I accepted my defeat and left home sad but with peace of mind of trying. The following days she texts me and sends me memes. I start to think of our latest conversations and interactions and I notice mixed messages, which were confirmed by my therapist. My therapist encouraged me go talk to her and ask her if I could to her graduation ceremony (I really wanted to go and support her in that important event for her). So one night I surprised at her apartment with ice cream and I told her three things (I was nervous).   
1. I wanted to know how she was doing since she hadn't reply to my texts since yesterday.   
2. I wanted to go to her graduation and support her and be for her during good and the bad times.   
3. I was going to therapy so I encouraged her to go and that I could help her setting up an appointment.  
Her answers were (while she looked like a scared child):  
1. Fine, struggling but trying to hold (she was stressed with her finals)  
2. No, I don't think I want that (which I didn't like and asked her to give it some more thought).  
3. She was hesitant but liked the idea (so I told her that she could text me a good day and time for me to set up the appointment).  
When I get home I receive a text from her where she told me to never look for her again. She then proceeded to block me from social media. I was super confused that whole week.  
After talking with my therapist I was like fuck it, I really want to go to her graduation and congratulate her and give her some gifts. When I see her at her graduation, she awkwardly rejected my hug but she had accepted by gifts two seconds ago. Long story a bit shorter, she told me she needed some time to talk back to me but that she felt my support. Later that night she thanked me for the gifts through text, but I didn't reply instantly. After a couple of hours she sent me another text exposing (I think in a good manner) her perspective that it was weird how I went to her place the other night and that I went to her graduation and talked to her family. I replied the next morning telling her that I was glad she liked the gifts and then explained my perspective. Among that text I told her that I had noticed the mixed signals but that I wanted to show her that she doesn't need to push me away and that I like her and that I care for her. Within minutes she answers the text (while I hadn't finished my explanation) and told me to not contact her again or she would call the cops on me. I did not text her back after that.  
Since then it's been a month or so of no contact. I think she still has me blocked. She probably moved out of the city/town by now. I have been learning a lot about BPD since then and now I wonder what would you think is best to do to help her. Although I'm not sure she is a pwBPD, for sure I can tell now she splitted and idealized and devalued me. Sure it hurts but honestly I know I will be fine and I can move on. I just want to know if there is a way that I can help her before I turn the page. I still think we could've made our relationship work. When I told her that I wanted to be there for her I meant it but I cannot be there if she doesn't want me to be there.  
She never told me her available times so I never scheduled an appointment for her (it would be an online session so it could be from anywhere). Thank you for reading and  I hope I can get some feedback and insight from this great community.