Bad sex! STOP calling bad sex a good effort
Most of the time, if I get people to speak their truth - everything changes! Love can be recognised, problems rectified etc.
The enemy here is the unnecessary care taking and the pleasing. Why would you not trust your partner that he can handle the truth (well or badly) and go and find a solution.
Of course the communication has to be transparent, compassionate and loving without any threats or deadlines being raised.
Keep speaking your truth, keep being intimate to each other. (intimacy = to reveal of yourself, that which so far has been hidden)