Are friends with benefits okay in this particular situation?

Me and my ex boyfriend dated for 16 months, we broke up a month ago (because he's going to college and doesnt have time right now with work and eveyrthing) and i am no where near over him. We started texting again last week, and he told me that he wants to be friends with benefits. I asked him if that would ruin our chances of working out again in the future and that i didnt want him to lose respect for me he said, idk our chances cause idk the future and idk what will become of us he says he wants to work out, but i would think he would try at least but he doesnt. I feel torn whether i should be fwb with him, but i feel like the only reason im doing it is to hold on to him.. let me add that we lost our virginity to eachother and ever since then thats really all he wants. He is not a pig or anything, he is a great person, but ever since discovering he turned into this typical guy.. idk what to do HELP