Am I wrong for being mad?

I’m not very close to my moms side, why? My cousin molested me, I spoke up and caused all this drama. So now “family” parties are so uncomfortable, we just keep our distance but my bf tells him hi. It gets me so mad how he says hi to him and he tells me that’s all he’ll do, am I wrong for getting mad,,,

No one believed me so for my own partner to say hi to him, hurts.

What are your thoughts/ opinions

He shakes his hand and says hi, he says he doesn’t want to cause a scene not “noticing” him. This guy molested me several times, I can give two fucks what the family or him think. Am I wrong for this??