How to hurt a guy? I’m

So my ex dumped me because he needed “space” I’m still depressed and keep crying every night . He texts me trying to get me jealous like “sorry I was on a date” or “ima tell this girl if she wants to “ blah blah like I’m so hurt .. he doesn’t care or love me anymore.. what do I say to him so he ,can get even more mad and make him jealous? Since he’s doing it back. Little about him: he has a small dick, only cums once a day, he’s fat, he doesn’t have a steady job, he’s 28 still lives with parents, he calls girls bitch and slut, the list goes on ... lol