Boyfriend makes me feel bad for not having friends

So, the title says it all. I’m 21 and i have a child from a previous relationship. I work and i go to school but most of my classes are online to make time for my son and work. I moved here about a year a half ago and where I work only has my manager and one other employee. Neither of whom really match who I would consider hanging out with outside of work. I’m an introvert anyhow.

My boyfriend lives about three hours away and will come to visit me or I to him once to twice a month. That usually equals somewhere between one to four days a month where I’m away from my son. I keep my son with me for a lot of the time I see my boyfriend but every so often we try to have some alone time bc we see each other so little. So even if I had friends, I wouldn’t spend a lot of time with them bc I try not to be away from my kiddo that much. I would feel like I would have to sacrifice time with my boyfriend to make time with friends in order to not cut anymore time away from my son. His dad is not very active so I’m all he has and I don’t want him to feel left by me either.

I used to be upset over not having friends but I’ve come to accept it as just being the stage I’m in right now with focusing on the most important things and not having a lot of access to meet people due to my schedule. But now my boyfriend makes me feel bad for it. He’s always asking me why I don’t have any and saying he wishes I did and blah blah blah. It’s super easy for him to have a lot of friends bc he makes them easily bc of his personality but also he’s in the military so he lives in a small town with a bunch of people around his age who are in the same stage of life as him and they all get along and enjoy the same things so yeah, he has a shit ton of friends not only for where he lives now but also back home. He’s always saying how our wedding is going to have a ton of guests just bc of how many close friendships he has.

I just don’t know what to do. Idk how I can meet people and make time to get to know them but also balance my son and other important responsibilities. I want space to be okay with how it is, at least for now, but he’s always bringing it up and I shut down on him bc I feel shitty over the topic. It’s like ya, i want friends too but he doesn’t get why it’s hard for me bc he has it so easy in that aspect. Any sympathetic stories or advice??