Don't worry too much about this small problem in front of you. I am also a fitness enthusiast. It takes more than a day or two to gain muscle. Give him more encouragement and surprise him in some trivial matters. Remember that men must not let women spoil them, so that women will become more and more passive, and often talk to him more about what is the most important thing at hand when you are casual. The key is to solve the exam questions first. Be confident. If you really love them.
I hope lovers get married.
Bless you.