Sorry I used the wrong username to post and want to stay anonymous. 
We only dated for 6 weeks but he was allllll into me and the greatest guy I’d ever dated. Talking about the future, calling me multiple times a day, texting all day, he became my fp. 
Then he changed his mind. Said he needed to be alone for 5 months while going through school and that we wouldn’t communicate during that time. 
I lost it. I started paragliding (risky behavior)  trying to distract myself. It didn’t work. I continued to decline. 2.5 months later I still text him from different numbers begging him to come back (since I’m blocked). I’ve had multiple breakdowns and threatened to kill myself if he doesn’t respond. He doesn’t. He doesn’t care. He’s is ALL I think about. What he is doing. Why I’m not enough. 
I also know how manipulative I am being and that it doesn’t help anything. I am newley diagnoses, as in this week so I do not understand my brain yet. I showed up at his house 2 times. This time he wouldn’t see me. He’s back on tinder. I can’t move on. 
Is this a BPD thing or am I just a fucking stalker?? I was never like this before because I was on a different medication. Came off of it and BOOM. Now to get on new meds :/