No, it just ads to the angst ;) Nothing can stop the love ;) We all know that they are gay for each other. Although I totally admit that Mohinder and Matt living together completely created a new ship *contemplates fic* Sylar just wants to fight to keep his slave love and there's a good deal of "you moved on?" angst potential ;)

Ando = best looking dude ever + the one who got the best make-over.
Nathan = even though he looks extremely sexy, the one who got the worst make-over :( Sorry baby.

He'll come back. They always come back ;) Or at least most of the time.