My point is, that it's not very helpful to dismiss someone as "the jealous guy who prevents his girlfriend from developing her personality". For most of us, there is a threshold at which we react, and "more" is always possible. Perhaps it is not about spontaneous jealousy, but about expectations of a relationship. And if there is too little agreement, at some point you have to find compromises or accept the consequences. There I have my doubts as to whether in this case the half-hearted salsa classes proveded to be a viable compromise.