I have a FWB, I like being around him, we have lots in common, we do have a bit of a sub/dom dynamic, he can be quite rough during sex, light biting etc but it’s all consensual and he constantly checks-in. After sex, he is really tactile, cuddles me, holds me and kisses my forehead. Then when we are out of bed he becomes really formal in how we interact, it’s like we go from lovers to friends, when I say bye, I’m often the one to hug and kiss him. Maybe this is his way of not becoming emotionally involved too much. It feels like he becomes a different person after we’ve had sex.