Yes, I'm aware. And btw, I didn't tell Jay he needs to move on. I said that he shouldn't throw away the history he has with this model, if he truly enjoys her, and I think he should go back to using his original account instead of having to continue pretending he's a member that's new to her room. Go back to his original account, and if Jealous Mod Dude doesn't like it, too bad...he needs to get over himself.
^This.
IMHO, you have 3 choices.
Firstly - say nothing about the alternate account, go back in with your usual username, know this mod is going to be a dick.........and just totally ignore him. Focus on restoring your relationship with the model, and do not let him get under your skin. Without knowing your personality, that may be impossible for you to do though.
Secondly - go back in there with the new username, contact the model and explain the reason for trialling use of it (and apologise for getting carried away with the subterfuge and not revealing it on the previous visit). Get the model to look at the mod's behaviour with that new account tipping, and then rejoin the room as your former id and she will no doubt see the change.
If she then understands, and doesn't act to pull him into line, then you're never going to be comfortable in the room under any username, for she is letting him dictate the mood over her own preference.
There is a chance she will get upset about the use of the new account, but clearly the dynamic isn't comfortable, so it's time to fix things or accept it's better to move on.
Thirdly - just stay away altogether, although it sounds as though you are already emotionally involved, so be aware of how this could be impacting on your decision-making.