Help!!

Jaimee
So my boyfriend asked me if he could go to a party and I said no. Let me explain. The party he would be going to is his ex girlfriends party they were together for 4 years! She still texts him with smiley faces and shit like that but he swears she doesn't have feelings for him. He said the only reason he wants to go is cuz a few of his buddy's are going and he wants to hang out with them! What would you ladies do??