"I'll burn his house down, scrap his car, and break his face," an acquaintance of mine used to say when she got divorced, and it seemed so ridiculous to me when I heard it, because when you're hurting, you dramatize everything.
Step 1: Burn his house - we will burn the house when he is inside -
Step 2: Congratulate yourself for getting over it.
These steps would be considered by any bitter girl who ended her relationship ignominy and is trying to get revenge on him in any way she can.
But there's only one solution: You just ignore his party and spit on him. You do your thing and just move on, finding the next guy.
How does it look like I'm over my ex?
One night I saw him outside and I just burst out laughing. The sight of my ex looking at me with his mouth open as if he'd never seen an ex before seemed so ridiculous that I just finished him off with a very ironic laugh.
Getting over your ex doesn't require a lot of brains, but it does require guts to stop talking about him as if he's the ultimate god and other men are idiots.
Also, since you see that he's spitting on you and not interested, you shouldn't sit around like the faithful Penelope and wait for Odysseus to return, who will only return when he needs you for a night or until he finds someone much better than you.
As I would say: Let him have my curse and let's move on!!!