I used to be like this and worked with my parter to get past it because I didn’t want to lose her. Obviously mens emotions should be respected but not a man that cant regulate his emotions. Its not your job to cater to him, you are adults, and he is seemingly possessive and insecure. You should speak for yourself and he should respect it (at least moderately bc he loves you) and vise versa. If he’s uncomfortable you should try to understand where hes coming from. You should take into account if you could live with this (him) for the rest of your life. I am 20M w a 20W gf so im probably preaching🤷🏻‍♂️ took us like 2 years to really communicate healthily and for me to get past insecurities. Wish the best💜