Which dinner outfit to gain back my self confidence?

Recently got my self respect obliterated by a guy so i just wanna look my best and hottest self to gain back my confidence and self love (and maybe make him regret lol)

Ps:

The first dress is a little less forgiving and thinner i hope it doesn’t look cheap?

I also have matching bag with the first one and haven’t worn it yet

I have worn the second one before as well

Idk i love them both honesty