It's based on what a guy post on RLCF (Dutchy 1969) but this guy has really too much imagination and he has been wrong so many times. So there is no real proof she has a boyfriend.
You are wrong for cam 7 we couldn't see anything of the window from cam 7 (except the relfect in the mirror ) before UM and cam 4 and 6 are also exactly the same