tldr: quick to lose interest in new relationships

I was diagnosed about a year ago with borderline personality.

Went to some therapy and kept running away from everyone supporting me because they would definitely leave me and give up (like many do).

Thought I'd find a sense of self worth dating people. I've been through seven girls in one year and I feel absolutely like the biggest pile of shoot.

Is it normal for someone with borderline to lose interest quickly and move on to the next?

I love my current girlfriend of three weeks but after the first week I already found myself feeling empty and bored of her, and everyone else in my life.

I'm so tired of borderline. Many past SI attempts. The mood swings are crazy. I'm a guy. Guys shouldn't be getting mood swings. There's so much stuff going on in my head I feel like it's part of whats detaching me from good relationships family/friend/girlfriend.

Any tips or suggestions to get interested in her again? I cant keep doing this.

It's kinda messed up my biggest fear is being alone but it's a fine line between someone being too close and suffocating and terrified of them leaving me (delayed text/call etc).

So tired of this.

Will it ever get better?