<human>: I'm trying to become involved with a friend of mine who I met through the woman I was dating about 8 years ago.  My ex is long out of the picture and is pretty strung out on drugs, but I have kept in touch with her friend and former roommate for years.  I'm very attracted to her and we always have a great time together.

This is where it gets complicated.  Her and I shared a few kisses on new years day and it all went swimmingly.  I had to let her know that I was interested in her and that I kissed her twin sister years ago but she wasn't really bothered by that.  Now so far I have dating her former roommate and making out with her sister working against my odds of having a meaningful relationship with this woman, but to add more fuel to the fire, my crush dated my ex girlfriend's ex boyfriend.  So my crush already feels guilty about dating my ex's ex, but now she is telling me that we can't date because she feels responsible for my ex's drug problem.  

So we get along like gangbusters and I know she's attracted to me because otherwise she wouldn't have kissed me, but is her excuse legit or am I just not reading the sings that point to her not being interested in me in a romantic/sexual way?

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<bot>: I want to date a friend who used to live with my ex.  My crush blames herself for my ex's current drug problem and says we can never date because she feels guilty.  Should I leave this alone?