Personally, I think it is normal to encounter such a thing in my relationship. He didn't do it to say what he didn't want to say in his heart, but to maintain the feelings between you, make your heart feel better, and to avoid embarrassing you. So I think your boyfriend still cares about you in his heart and will know how to consider your feelings. He is a trustworthy person.
He does this to make you more confident when you cook next time. This is to support you silently behind your back, because whatever you cook is delicious in his heart, so you should not pay too much attention to it, but learn to cook better next time and learn more cooking knowledge in peacetime, so that he can really feel delicious when he eats your cooking next time.
Many people are wrong. No wonder the meat is not crispy and is old and tough.