Should I message him first?

Last night me and my s/o got into a fight and he didn’t wanna talk but I asked him to stay and he did. Then I said bye a little after that and he never texted me back all day. Should I wait for him to text me today or should I text him myself? I only said bye because I didn’t wanna force him to stay if that’s not what he wanted.

We’re not dating. We might as well be. We actually dated for four years and might get back together soon. I just don’t know if I should let him come to me.

I’ve done this before and went ahead and texted him but he acted like he didn’t care about talking to me and didn’t want to and it really hurt my feelings and I don’t want that to happen.