What do I do if Im not sexually attracted to my girlfriend anymore?

Anonymous
Im not physically attracted to my girlfriend anymore. She's a loving and a genuinely great person, but i just dont want to sleep with her. I find myself daydreaming about other girls and not getting hard like i used to when i think about her. I haven't told her because she's a crybaby (that used to be cute but now i can't stand it). Do i tell her im not attracted to her? Do i break up with her? I can't ask her to work out and excercise because it'd be for selfish reasons and id feel horrible. What would you do or what should i do?
What do I do if Im not sexually attracted to my girlfriend anymore?
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