I voted for disappointed since I do feel that O5 Bobby being gay was fine since they could always say he's from a different timeline but adult Bobby has been around far too long considering how few signs of his being gay we've seen.
And no matter how much some people try to point to this or that as proof that he's always been gay the fact is that he hasn't always been written as gay and all of those comments might seem like hints when you look at them thinking that he's gay but if you look at them without any personal bias thinking that he could be anything from straight to bi to gay you see that there are many different ways to interpret them and none of them are really 100% proof of anything.
If they had made him bi that would have been less contradictory with his past. However unlike others I don't feel that him being gay has made his previous relationships with women invalid or anything.
But anyways, overall I'm kind of indifferent anyway since Bobby is far from being my favorite character.