Hey guys, started dating this chick 3 months ago. Discovered she has BPD. She becomes crazy and yells and gets mad at stupid things especially when she's drunk. However she is beautiful and when she is normal (sober) she is very fun to hang around with.

Recently she told me that "I am the one and that she is falling in love with me" (LMAO) and that she wants to start getting more serious because her dad is 75 years old and she wants him to see her get married before he dies.

As much as I enjoy fucking this girl and hanging out with her when she is not a psycho, I know she is not the one I marry. I feel like I am wasting her time and she needs to find someone that values her more than I do.

It sucks because I thought I'd be able to just sort of lead her on for a while, while we have fun hanging out, traveling, and fucking like animals (one of the best sex I've ever had). But after her recent statements I feel like I have to break it up.

What is the correct method and words to end on good terms and doing it respectfully?