Is it ok to send him BD wishes?

I was seeing a guy 2 months ago for a month then we ended up stop seeing each other because he didn’t want to be in a relationship with me that was on and off like I didn’t care about the relationship (from his point). I did care about him but I felt like he didn’t want to take it serious or not ready for relationship whether because of his business or he’s enjoying single life! anyway we stopped and I never heard from him ever since, it’s a month or so. HisBD is coming up next week, Should I send

him BD wishes by text? Is it a good idea? To be honest, I still like him and wish things could work out but I don’t chased him if he doesn’t want to be with me
Is it ok to send him BD wishes?
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