<human>: Can you succinctly summarize the text in 1-3 sentences?

Hi redditors, I'll try to keep it brief.

I'm male and in my 20s, and for the past couple of years I have felt what could best be described as [limerence] kind of a severe crush, for a female friend.  The way she thinks, speaks, moves, I find it all incredibly endearing even though I don't know if I love her in a romantic sense.  But I do care about her happiness, a lot, and I know that this is because of the crush thing, not the friendship.

I know this because we aren't that great friends.  We have several mutual close friends, but we rarely hang out and find it difficult to sustain a conversation with just the two of us.  If it wasn't for how much I care, I would not want to have that much to do with her.

I've already weighed it up myself, and forced myself to accept that if I really care about her happiness, I should leave her for someone who will love her in a proper way, and that she loves back.  This leaves me the option of gradually having less to do with her, which hurts, but maybe it's the best for her.  It would be selfish of me to try and make a move on her when I know she would never be satisfied with me.  But I would love to hear your perspectives, so fire away.
<bot>: I really like her, she doesn't seem to like me much, I think I should leave her alone, what do you think?