<human>: Hi reddit! I am 20(f) and I live with my boyfriend 23(m) but he is soon to be 24! we have been dating for about 2 years.

The reason i am posting on here is I am seeking advice on how to celebrate his birthday-mainly on if I should force him to go to a birthday party. To explain, his older brother's birthday is around the same time and his wife is going to have a birthday party for him, but she also wants to make it a combined birthday for my boyfriend. I told my boyfriend how it might be fun and he could invite his buddies from work, but he doesn't seem down for the whole idea, because.. well I don't know why for sure, he is just a homebody.

My boyfriend is the type of guy who enjoys staying home, playing video games, and doesn't go out much. I don't want to force him and make him mad, but I feel like he would have a good time once he got there and was drinking with his work buddies. I know he would have fun, because we went to someones party once and he was really anxious at first and once we got there he was having the best time drinking and talking sports with his friends. 

my question is: how do I convince him this birthday is a good idea? I don't know if I should talk him into it, tell him to do it for me or what. Also, I know for a fact he won't tell anybody at work so I don't know if it would be bad of me to invite one or two people from work that I know he talks to. I just think he is too anti social sometimes and needs to let loose. I would also have fun at this party, but if he is really against it I won't go.

I wanted to mention that the reason i am asking is my boyfriend isn't one to go into why he feels a certain way or why he doesn't want to go somewhere and I don't know what my "game plan" should be. Any advice would be greatly appreciated :) I love my boyfriend and only want him to have fun!

Could you distill the essence of the text into 1-3 sentences?
<bot>: Me (20 f) need help convincing my homebody, sometimes anti-social boyfriend (23 m). that a combined birthday party with his older brother is a good idea.