Not even. Fiona was serious with Carlos and Mike was ready to let her go. And that's what would have happened if not for the whole "Mike succeeds or everyone goes to jail" caveat. I bet if Carlos had known about that, he wouldn't have been so keen to leave.
The problem since episode one has been Mike's obsession with his work--he loved serving the CIA and that obsession subverted everything else. We've just learned his devotion's been broken--he did go rogue, after all. If Mike survives all this--if Fiona survives too, then they'll probably finally be happy together, as Mike would no longer be interested in chasing his job.
XI Wiki


) but it's so not gonna happen 