While Jeph has said in the past that he wasn't going to show human/AI relationships, there have been some small hints in the past. Hanner's dad sending her a robo-boyfriend to practice with. Momo getting all hot and bothered about Sven. None of those went anywhere though. I would say some of May's recent showings indicated a change in that, with her desire to be intimate with humans. That doesn't mean anything will happen, or it will be shown if it does. But it does show an evolution in Jeph's attitudes towards the subject.
As far are Faye/Bubbles... I don't think so. Again, May is far more likely to be the subject of a human/AI romance story. I'm not sure if Bubbles getting flustered and blushing around Faye is a reaction to her personality, or an indication that Bubbles has an attraction to Faye. But I'm quite sure Faye doesn't feel that way about Bubbles. She has never shown any indication of attraction to women, be they robot or human. And her interactions are very much like those she had with Dora. Basically, Bubbles has become her best friend. Faye and Dora may be doing better these days, but things will never be as they were. Meanwhile Faye spends all day at work with Bubbles, and invites her to hang out after work. She is very comfortable with her, both socially and physically. Something that was pointed out she feels around friends, but not potential lovers. In the end, I just don't see the Fubble ship making it to drydock, let alone setting sail.
I am also in accord with the feeling that this is going to far. I'm all for gaying up stories more, sure. But just because two people have a close relationship doesn't mean they are going to date or have romantic feelings for one another. I guess that it is an extension of the concept that any time two people of the opposite sex get close in a story, they are going to wind up together. With more acceptance that gay people exist, now it's any time two people are close... Ignoring the fact that most of the people an average person is friendly with are not on the 'I want to date them' list...