Husband walked out of us

I’m a new mum and a young one my husband (5 weeks ago) walked out on us saying we’re better off as friends?? And that he has to “choose himself” as he wants time to go out drinking with friends. I saw him today where he told me he’s meet someone new who’s a hot ginger (AGAIN it’s been 5 weeks) he even showed me her picture, (she’s a carbon copy of his sister 😩) Well tonight I absolutely lost it called him an embarrassment, a selfish low life and that I hoped his foreskin got caught in a car door. Amongst other things… I’m not very proud now and feel really guilty, I said some pretty messed up things . I’m scared I’ve potentially ruined my daughters relationship with her dad as I fear he won’t come around that much anymore. I can always find a new husband but her dad is her dad. I feel that I’ve been utterly selfish and stupid. Should i apologise or stand my ground that he’s a stupid twat (which he is). Or has anyone else gone through their husband literally just going cheerio! One morning and waltzing out the door. I feel very alone.

Ps

The pregnancy was planned and fought for (8 miscarriages and we were about to start fertility treatments) this wasn’t an oppsie baby, he choose this.