<human>: Last year ended a three year relationship preceded by a seven year marriage and I decided no more for now. I started seeing guys casually and have been upfront with them about this from the beginning.

 My most recent FWB of 4 months has started getting really upset with me. He originally told me he was fine with it and we had great times. Now, in the past couple weeks and especially the past three days he has been getting angry with me for not wanting to be with just him. We got in a big fight about it and he called me greedy and cruel. He said I've just been using him. He says he loves me and he knows I feel the same and I am just ignoring it. I told him that I was upfront and honest from the beginning about what I was looking for and it isn't fair that he is acting like this and asking this of me.

I ended it last night, but I'm sure that is not the last I'll be hearing from him. I still have a couple things I have to get back and return so I'm sure I'll have another round to go through. I feel like absolute shit, I never wanted to hurt him but I also don't feel like I am in the wrong here. 

I guess I really don't have a question but if anyone has advice I'd love to hear it.

Can you condense the text into a few key points?
<bot>: FWB of four months wants me to end it with other FWBs to be with just him. I won't, he thinks I'm greedy and cruel.