Bi-Polar Crazy, But..Hot Body

I have a cute, hot, petite blonde FWB who I get together with every so often. Problem is, she's also a raging, stumbling, embarrassing alcoholic, who starts drinking before I even arrive to take her out for dinner, an appetizer, etc. It happens every time without fail. If we go out, she will either be cut off at one drink because they'll see the condition she's in, or, if I know the staff or bartender, they'll tell me "Get her to ease up, or get her out of here before we have to kick her out".

Thing is, too, that she has a fit, petite, hot as hell body, great, shapely ass, and is very fuck-doll sexy. The pure guy part of me can't ignore that. We started up a little bit at her apartment last night even though I knew she'd had a few at home, and I was getting hard just handling her body and kissing her. I wanted to throw her down as she did her makeup and shook her tight little ass in a short sundress that really highlighted her body. My brain goes from "Careful tonight, she's already half in the bag", to "Look at that ass..I'm going to fuck the hell out of her", which I usually do anyway.

I've had to carry her out of places too many times, and go back, embarrassed, apologizing and adding more cash to my already high from guilt, tip. I know the deal with her and it hasn't changed. She's a raging drunk, bi-polar, embarrasses me around people I know, and I shouldn't spend any time with her. BUT..That body is just so hot, she's great in bed, and she's so easy to fuck, that I give in too often. I've never seen a woman wear dresses or sundresses like she does, perfectly tight and accenting her every curve. I can look at her and get hard. Even knowing she's nuts.