How can I let my ex (from a situationship) that I’m blocking him?

I’m 30F and he is 35M. I was in a situationship with this guy for 1.5 months. It was pretty horrible to say the least. We were friends first but one night after our first date- we hooked up. After then he kept saying how I’m a hoe for doing that, I’m desperate, and have no standards. Confused by this- since he liked it, I decided to stop being physical with him. We still had sleepovers but then he would get mad that I didn’t want to have sex with him! Or did I didn’t Want to cuddle much when he wanted to cuddle with me... He would say “well I already think you’re a hoe so it doesn’t matter if we did it now” and “ it’s not fair that other guys were able to sleep with you but now I can’t because I told you how I felt.” These type of comments went on for the 1.5 months.

He belittled me and made me cry a lot. I went away for 2 months to see my family, and we’ve kept in touch via text and calling but were getting in a lot of fights because I wouldn’t send me sexy photos... or give him more of my attention.

Eventually I lost it with him and told him IM DONE. I deserve way better then this! I had an epiphany. I told him this and all of the sudden he was “sorry” and how “im overthinking everything.” I told him it’s done that’s it. we’ve still been texting because he wanted to try and be my friend, but honestly I’m exhausted. I put up with this for way too long, and I want to do the healing so I can find better guys down the road.

I want to text him that I’m blocking him and need space. To be honest, I feel kinda bad because blocking can be perceived as mean but I just don’t know what else to do at this point.