[Age of Ignorance]

Jealousy is a cruel mistress. You can't let it affect you.

If you truly want to spend time with her, you'd go to this group meeting and you'd go in there with the knowledge that she's going home with him and not you. You'll be affected by their affection nonetheless, but at least you can prepare yourself for the inevitability of it. And hey, if it works out differently, that's great. Prepare yourself for the worst, expect the worst and if you get anything better, you'll feel fantastic; if you get the worst, you won't feel any less disappointed, jealous, envious or spiteful, than simply for the fact that she is with someone else - you won't have the disappointment of failed expectations.

Remember, she's with him, not you. You have to expect that affection will be passed back and forth by them; you don't have to like it, but you have to know that it will happen.