Say hello to your boyfriend and don't return text messages.

To tell you the truth, I don't think you are ill, but he is. Of course, it is also out of his love for you, but a little bit is a bit too much. I suggest that the next time you say yes, you are chatting with others and see what happens. It may stir up waves, but you can also take this opportunity to have a good talk and make it clear completely/maybe it will be all right in the future. If he insists too much and even asks too much to limit you, then I think even if you continue to associate, it will become more and more difficult because of some such little things in life.

That's all, my humble opinion. I hope I can help you, wish you happiness and happiness.