BPD in an ldr... Would closing the distance make it worse?

Idk what it is but for some reason my BPD is bad when we're apart but when we're together in person it's wonderful like none of the lows in the relationship ever happened and we're so in love and in the moment. What I'm fearing is that eventually that honeymoon phase when we spend time together will end once we see each other more or live together and the BPD symptoms that show when we're apart will be there when we're together... Anyone ever been in a situation like this?