Guy's Behavior

Does he miss me or is it just the sex?

So i’ve been hooking up with my friend for a year now. We’re very chill and nice to each other... have a good connection as friends and as sex. Shitty part is that he’s in love with someone else unfortunately, but anyway... I haven’t had sex with him in almost three weeks now. He messaged me few days ago saying he wants sex, but i had work... we sent nudes to each other, but then he changed subject and said he missed me a lot (but he said he hasn’t had sex since the last time i saw him even though he can have sex with the girl he loves). I tried to ignore the fact that he said that because i’m trying not to get in my feelings with him and make it strictly business with him (he knows that i like him). I just said “keep looking at that photo so you’ll miss me more,” but he responded “don’t you miss me?” So i told him the truth that i did. I feel like it’s the horniness talking, but at the same time it might feel genuine because the next day he kept saying he wants to have sex, but he misses me a lot and how much he liked me because i’m very nice and caring to him because i asked him if he wanted anything to eat. He wanted to stay over at my place and sleep the night with me. He even said he would cook for me. I just find it weird of him saying all this stuff to me when he was the one that said to not get feelings for him. Ever since i confessed to him, i became more distant because he’s supposedly in love with someone else.
Does he miss me or is it just the sex?
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