I’m really struggling with paranoia, I’m finally in a relationship with someone really great but I’m ruining it by constantly being paranoid. 
He has never done anything to make me doubt him but I constantly think it’s all just a lie, maybe he doesn’t love me, maybe he’s cheating on me. Why is he constantly on his phone? Does he even find me attractive?
I’m not sure how to shake this, I’m not even sure if it’s a BPD thing. 
Just hoping for some advice...