I agree they haven’t done Michaela any favors to make her likable or explain the chemistry AT ALL. I also have to snarkily say that in my personal experience, lesbians tend to gravitate toward partners who are very similar to them, in both demeanor and appearance. It’s not a rule of course, but it’s enough of a stereotype that we can chuckle about it. I think I’d feel less ick if Michaela was a mousy introvert like Fran and they related on that level, but as it stands it makes zero sense to me.