I wasn't impressed with how Andi handled either Chris or Nick. With Chris she boohooed so badly that Chris wound up comforting her. She acted like she was the one being hurt instead of him. She seemed to want to go into the same role with Nick, but he became a bit accusatory, so she got tough. Then at the AFTR, instead of saying, "I'm sorry. Maybe I did take it a little too far. I'm sorry that hurt you the way it did," she had to start making that he was the bad guy.
My opinion is that she should have said, "I didn't choose you because it takes you five minutes to articulate a simple thought." God knows that would drive me crazy.
I really don't think Nick is a stalker, but the show likes to play up that sort of thing with rejected suitors.
But anyway, Andi's foibles are all Josh's to deal with now, and his are hers. Just hope that TPTB shun them the way they have Des and her guy who,IMO, are far more likable.