I would definitely say something, at least to your husband. Even if nothing else happens, he'll know and respect your feelings. If you don't tell him, you may get more upset seeing them together, and this way he'll be able to keep himself in check. The bride may have not had anything to do with it! If you're good friends with her, I'd mention it, if you're husband is closer to them, get him to say he's not comfortable with it.
This is just what I would do, but you don't have to listen to me...I'm pretending I'm married because I'm afraid of what some old guy will think!