This might be contentious, but I would actually appreciate it if RPGs with "romance paths" either require the player to VERY explicitly initiate those storylines, or just have a toggle to suspend them from triggering. Like buddy, I know I helped you raid the Tomb of Al'Septa, but I wasn't proposing marriage.
It just really creeps me out to be put in that position by the computer in the first place when that's not why I'm playing, to the point where I tend to avoid those types of games now.