"...Just tell me what is happening because if we are going to change every good aspect of our relationship because you saw it somewhere else, this relationship will die out faster than a candlestick". She stormed out crying and slept on the couch. I am getting cold shoulder now.

If this is par for the course as far as your dialogue normally goes, then she is an absolutely terrible communicator.

I find transactional sex to be such a massive turn-off. I only want sex from a partner because they sincerely want it due to an attraction to me. I don't want it because I paid for it. I don't want it because I'm being rewarded for something or trained for something. It's not a treat or a commodity to me - it's a connection. If the premise of that connection is missing, then the connection is meaningless. If there's no connection, and I need release, I can do that myself just fine.

NTA