unnecessary

I got a text today from a number that wasn't in my phone:

him: I found out from N_ that yer mom passed away recently. I am really really sorry, she was a remarkable woman. I really enjoyed the time I was able to spend with her. Please send my best to K_ [mom's husband]. And please hang in there.
me: Who is this?
me: I'm guessing this is R_[ex-otter]. I don't know why you still have my number. Get rid of it. If I'd wanted you to know about my mom, I would have written to you.
me: I don't want to hear from you again.
me: The last thing I want to deal with right now is the pain any thought of you brings up. Please don't reply. Just go away.
him: Sorry.
me: Way too little, way too late. Good bye.

He's had my number all this time and never called or texted? every other interaction was through email. I would have preferred an email. It seems less personal than a text and more on the lines of the level of interaction I can handle from him. What am I saying? I can't handle any interaction from him.
When mom first died, my instinct was to get in touch with ex-otter. But I didn't. I'm glad I didn't. I can't stand his know-it-all attitude. I hate him.
I hate him and I hate that it took him this long to apologize, and it wasn't even for anything he did.
I feel foolish and angry and lonely.