I don't want to go to a party

I, like everyone else here, hate parties. But the girl that I'm in love with is throwing a party next week, and has invited me. I would rather do anything than go to a party, but I really want to get to know her better and try to get more comfortable around her so I can maybe build up the courage to ask her out. However, I had sworn to never go to another party since they're basically torture for me. What do I do? Should I go to the party and suffer on the off chance that I get some one-on-one interaction with this girl, or should I stay home and screw up my life even further? Sorry if this is incoherent or unwelcome here, I'm very tired and not sure if the correct sub to post this on.