Franco was definitely a bit much in the beginning, but I don't think I would define it as stalkery. I mean, he needed to take several steps back at certain points, but I never got the impression that he was menacing or anything, though the show did go to lengths at times to frame him in that way to amp up tension and red herring him as a suspect in serial murders... twice. That bothered the shit out of me actually. Like that creepy ass elevator scene where they played Liz as absolutely terrified of him for like half a minute and then it was fine. That is terrible.
I do like Friz, but I find it sad that this relationship is the longest lasting one that she's had, and that this is her longest marriage as well. Poor Liz couldn't catch a break for decades, and the one time she has it's been sort of an anxiety hammering ordeal for a good chunk of time. I'm actually glad that they are basically back burner for a while because the minute they get front and center, people start dying.