Plus, I honestly don't think Bill references her sexuality any more than the straight companions do! All the daily mail comments saying "when has a DW companion ever shoved their sexuality down our throats" like um? as if Rose, Martha, Donna, Amy AND Clara didn't have male boyfriends/fiancees/love interests from literally their first episodes! (im not bashing on any of them ftr I love them all so much but come on!)...How on EARTH is Bill and Heather any different?! It's just BAFFLING
Yeah, she really doesn’t reference it more than straight companions, but I guess people are used to gay characters having to exist purely within subtext so homophobic viewers can pretend that part of the character doesn’t exist. This time they don’t have the option because Bill’s super upfront about it and so’s the Doc.
If anything I hope to see more of Bill talking about her sexuality because I mean, like I posted earlier, we can talk about that sort of thing a lot when we know we have a non-homophobic actually decent friend with us.