Unfortunately, there's really not much you can do here. If she's a threat to her or other's safety, you can get her admitted to an inpatient facility where they'll sober her up and put her on meds, but if she's not, it has to be her choice to get into treatment. There's no good way of getting rid of delusions. People can't be talked out of them. I've found new ways of looking at some of the ones I get, and that can help.

But right now, a "normal relationship" doesn't look like it'll be happening between you two. Do with that what you will.