Please don't judge me, just asking:

I have had this "booty" type relationship going on for awhile, 2 years on and off- the guy was always texting me "hey beautiful", "when can I see you", etc.

Over past few months, his messages gradually went away. one minute he would text me "you must be with your new boyfriend" and then 2 days later would say "you're so hot" and then nothing for a week. Then out of nowhere he would text "I'm so happy you found a boyfriend" "I;m happy for you."

I got mad at one point and sent him nasty texts (this was a normal thing for us). I told him he must have a new lover, etc, then I said good luck with everything and sorry for everything. So I get mad because I feel thrown to the curb, and then a few days go by and I start feeling better, like I am moving on and then bam, he sends another message and gets me all crazy again!!

My best guess is he has been with someone else the past few months and was trying to save me on the side in case she dumped him. so last night his final text was "you must have a new boyfriend, you deserve the best". What should I say back to that?
He knows I don't have a boyfriend. I know this is a silly question. Our relationship we had was so weird- naughty texts all the time, then we would get mad at each other and say mean things, then nice things, and yes we are old!! I don't want him for a real boyfriend or anything but part of me misses what we had.