What should I say to my ex?

My ex has been liking some of my old posts on social media recently, and I know he’s doing it on purpose because he misses me and wants to grab my attention.

I want to message him. I miss him and I want to fix things, but I’m also just as stubborn as him and I don’t want to be the one to say something.

It’s always me reaching out. This is the longest I’ve gone without speaking to him. I’ve stopped talking to him exactly a month ago and I miss and love him so much.