A person's emotional intelligence is too low, which is actually the result of the acquired environment. You should encourage him to socialize more and make more friends with high emotional intelligence and good social relations, so that he can communicate frequently. Over time, my boyfriend has experienced more outside, got exercise, and being unable to talk can definitely be eliminated. After all, college students who have just left the society are not good at talking, and eventually they will exercise their eloquence, so they can exercise the day after tomorrow.
Be sure to tell your boyfriend patiently that what he said hurts, but remember to be tactful and take care of the boy's face. You can say it coquettishly or pretend to lose your temper. The purpose of this is to make your boyfriend pay attention, because if you don't tell him that you are angry, he may not know that your emotional intelligence is wrong, so girls can use some harmless tricks.
Finally, be careful not to yell at your boyfriend or compare him with other boys, because boys sometimes have a little pride.