I will ruin my relationship

So every now and then like I’d say once a month I just require so much attention from my bf and I second guess everything he does it’s like I’m overly paranoid.

I know he loves me but I just go through these weird phases where the more attention I require the more he will obviously push away because i will cause arguments

I don’t really know how to stop myself from doing this, I feel like I’ve lost confidence in myself and I don’t trust I am good enough while I feel like this.

Can someone please help