In need of advice

I dont really know what kind of advice im looking for to be honest but ive gotten some insightful advice before on here so thought id ask.

Im seeing this girl right now and i like her and she likes me, we have hung out a couple of times (8hrs+ each) and I stayed the night at hers the other day. However I think my experiences from previous relationships are making me skeptical of going further with her and being able to trust her.

So tldr; all my exes (3) have been bisexual and all of them at somepoint during our relationship would use liking men to try make me jealous and/or get at me in some way, and the girl im seeing now is also bi, which isnt a problem but im just deep down finding it hard to fully allow myself to like her or be in a relationship with her because of my previous experiences and i feel like im just waiting for that to happen again.

Has anyone else ever had this or just have any advice at all? Thankyou!