Fwb gone wrong help!!!

Hello all I need some advice

Guy iv currently been seeing since Dec iv known for about 9 years we have been on and off in that time I had a different relationship and now have A 7 year old he was married and is now divorced he is Muslim. When we 1st started the fwb we agreed no feelings and he said he did not want a relationship so we agreed to fwb which was fine. We do have very good sexual chemistry Over time I have developed some feelings but never let him know this. Last we saw each other was 2 weeks ago and he was acting very different was all over me staring at me funny etc mentioning how I never text or call him 1st etc.

I can be very guarded and stand offish when I talk to guys as my ex really hurt me so don’t know if I maybe upset him but Everytime he would leave my house he would always text saying something about what we did etc this time he never.
I left it a few days texted him a joke and he did reply but he would normally always send me Snapchats etc he hasn’t.

Today he has texted saying “we shouldn’t see each other anymore as it’s not fair him just messaging when he wants something and it’s just messing around – straight up” I didn’t notice it right away as was at work so replied about 4 hrs later saying I thought we had agreed that’s what this was when we started it as he didn’t want feelings/relationshipI was confused but if that’s what he wants OK. He hasn’t replied?

I should also add he is aware I was texting another guy but he never said we were exclusive so I assumed it was OK to date.

I’m totally confused anyone any idea what his problem is?
Iv always assumed due to his religion (Muslim) and my past relationship with my daughters dad (also Muslim) that we could not be in a relationship as his family wouldn’t approve as I’m not Muslim.

Any advice would be appreciated do I just delete him off everything and move on??