Wouldn't that be something if he actually saw everything? I know if I was Dylan and saw my mom doing that with my supposed "best friend" I would be pissed, furious, I would kick his ass first and tell him to stay away from her, and I would be done with him period. Also, if I was Dylan, I wouldn't have let it happen, I would have ran to his house and make sure that it doesn't go any further, but that's just me pretending to be Dylan. So many possibilities could have happened, but honestly i don't think he saw anything, I guess we'll know soon enough.