Sometimes, distracting myself works for ending a crush. I know that the feelings of that high, the excitement and intense emotion are hard to replace. I have been there. It's hard to resist.

What often works for me is I stop crushing when I find out they're married or have a partner. You say she's married. Would it kill your feelings to imagine her domestic life with her spouse? Or would that make it worse?

I think you have to figure out what would disgust you enough to stop liking a person and maybe apply that to your crush. I dislike certain political ideologies. Once I find out a crush voted for a certain politician, it kills my feelings for the crush.

I think these crushes are an indication that you are lonely and you desire to love and be loved. You want someone to care about. This is completely normal and expected in any person. Don't feel bad about having feelings. I'm sorry you're hurting.