- We weren't doing anything in the hotel room together. (Hint, the lobby is a marvelous proper place to exchange things.)
- You are being controlling (interpretation; I know you are watching me and I have secrets).
Your loft does sound small and near to impossible to keep secrets in. She needs her space to carry out the affair.
She wants to leave, and justify it by making it your fault.
Fair warning about marriage counseling (together, not individual), it is a complete waste of time while she is in the midst of an affair. Don't waste your money.
Don't tell her the extent of your knowledge of her actions. She is 99.999% likely to be having a physical affair. Don't waste your time wondering whether or not she is.
All the best, -NOPkins-
I will ferret out an affair at any opportunity.
-An affair is the embodiment of entitlement, fueled by resentment and lack of respect. -An infidel will remain unreachable so long as their sense of entitlement exceeds their ability to reason.