Am I overreacting? My husband uses my birth name during arguments. Tw SA.

Hello, I've cross posted this from another sub too, I hope that's okay.

I changed my legal name first name by deed poll as a teenager, now many years later literally no-one uses my original name. I didn't feel it suited me. It's been so long, I'm not used to hearing my other name as it's a really unusual name.

My husband has this annoying habit of using my old name during arguments, despite many times of me asking him not to. It's not just annoying though, when he is angry and resentful and says it with a mean look in his eye, it is really triggering, and I have explained this to him more recently when I became more aware of why I was reacting the way I was. You see I was sexually abused and graped many times by my mum's boyfriend when I was 11/12, something my husband knows.

I really thought that sharing how deeply upsetting it is would make him stop doing it, you wouldn't do that to someone you love right? I wouldn't.. But he has been doing it more often...

Am I over reacting thinking this is really shitty red flag, behaviour? We have been married 10 years and have four children together.