Very true. Given how easily lycanthropy can be transmitted by biting or scratching in the Eerie-'verse, it would definitely be a conversation Mars would need to have with future intimate partners at some point.

I forget whether Marshall's refusal to sleep with Dash during the full moon has come up in the published part of Roller Rink yet, but that's not something he's willing to risk given they don't know if Dash can catch lycanthropy or what the possible effects might be if he did. (The paranormal literature doesn't cover the situation at all, but it seems unlikely to Mars that were-Dash would be any sort of a normal werewolf.) Though that was less of an awkward disclosure conversation and more of an awkward "This is all your fault to begin with, so shut up!" conversation.