<human>: Very simply, how do you handle it when a guy, who was once your best friend, you've had feelings for, that has done things for you in the past that indicates he probably has them for you, too, gives you THE look when you're out at a big social gathering?  The catch is that he had started dating someone else (26F) a few months before and foolishly move for her (someone who isn't a very good person either), though she couldn't make it to the event.  He knows how I feel about him, and he admitted to me in the past that he knew it would work between us but said he "didn't know." (I honestly think he was afraid because I am the polar opposite of the bad girls he usually goes after and fails with). How am I supposed to take that?

Summarize the given text in a few sentences.
<bot>: I (29F) have feelings for a guy (29M) that gave me THE look at a social event, but he's in a relationship (with a crappy girl).  It's confused and frustrated me.