Ex and I split 18 months ago, while he was dating this girl we were still living together, but he finally moved out couple months ago. I've yet to meet her, but we had an argument while we were living together where he mocked my depression , and said I'm not doing anything with my life, I have no friends etc anything he could say to make me feel worthless. So I texted him " while you're out wining and dining your girlfriend, I'm here looking after your children.." he's now showed this text to her, and I now feel like an idiot, I'm scared she's gonna think I'm jealous and I really shouldn't have dragged her name into the argument, but the only reason why I texted him that was to show him, the only reason why he gets to out with his girlfriend every night is because I'm at home looking after the children.
So would you apologise when if you meet her or forget about it?