Rumor has it (and also unlocked game files) that there will be 4 more companions, so these may not be the only choices for romance.
I may avoid romance altogether in BG3 because it's handled so poorly in most games like this. It's usually a predictable arc from "You're really not my type" to a drawn-out melting phase if you choose just the right scripted dialog. And then you're suddenly in bed with them after passing some trigger. You can see it a mile away, it seems forced and not natural. Romance by the numbers.
I dunno, I'll wait to see what the other companions are like. Maybe one will interest me.