I don't understand that at all.
Why would I care what else a person is attracted to, so long as the range of things they are attracted to includes me (and excludes children and animals, I guess)?
Like, I've heard some people say they wouldn't want a bi partner, for reasons. Bi, straight, pan… so long as she likes me specifically, I probably won't even remember what her full orientation is unless it comes up. Anything that entails "likes cis dudes," regardless of whatever else she also likes, will suffice.