How can I [22F] tell my bf [22M] I’m upset that he’s not spending enough time with me without making it seem like I’m trying to limit his time with friendship

I’ve been with my bf for about a year. Recently my needs aren’t being met and I’m not sure how to tell him. I fear that it’ll come off like I’m sour about him hanging out with friends or just constantly complaining.

Context:
I (22F) kind of have a nightly routine. It’s pretty simple; after I get off work I’ll call my boyfriend (22M) and we’ll chat on the phone until I fall asleep. We’re a bit long distance so we call to keep in touch. Recently, I’ve been feeling like our conversations were pretty stale so I suggested instead of talking every day we talk to three days out of the week. My boyfriend agreed and we started doing that for a little bit and it helped a bit. Along with that I’ve been feeling kind of left out, especially when were both with a group of friends. I often feel like I fall to the sidelines. What usually happens is, my boyfriend will talk a lot with all of the other people in the group and I kind of drift to the back. I’m not really good at inserting myself in a conversations especially when it’s a topic I don’t understand or know anything about. I also feel like it would be rude if I jumped in. So I end up in the background and feeling like a secondhand character. I’ve expressed this to him many times, but he never really grasped it fully. I brung it up again after this past situation (which I’ll get into) and he now sees where I’m coming from. He’s expressed that he’ll do more to include me in conversation and has apologized for not understanding me before.

The problem:
So now for the real issue. Recently, my boyfriend made a new friend. And he was super excited about it and really wanted me to meet them. So of course I was pretty excited to meet them. The time came and I ended up falling behind while my boyfriend his new friend pretty much hung out with everyone else in the group. (This was before I brought up that I felt left out) Everybody in the group was super excited to get to know them so I never got a chance to actually have a one on one with the new friend. It wasn’t anyone’s fault. Everyone was super excited to have a new person in the group. I just didn’t know how to insert myself into the conversations and fell behind. But ever since then I haven’t had much chance to talk with my boyfriend. Him and the new friend are getting along really well so they’ve been hanging out a lot. So I’ve had less time to actually talk with my boyfriend on the phone. When I get off work, I check his location to see if he’s home because that’s how I know he’s available to talk. But every time I check his location he’s either at school or at the new friends house. I don’t like to call him if he’s at school or at a friends because I know he won’t have the time to sit and have a conversation bc he’ll be too occupied. This wouldn’t be much of an issue if he wasn’t at the friends place all day and night. By the time he gets home I’m fast asleep. So for the past week, my routine has been off, no calls at all which sucks bc I like to fall asleep in the phone. So this entire week we haven’t had a chance to call at all. It’s really frustrating, my routine is off and I’m also not spending any time with him. But I also don’t want to pull him away from his friends or make it a big deal since I’ve already complained about being a side character. I feel like I’m overreacting because I know nothings intentional. How do I tell him that I’m upset about not getting to talk with him without coming off like a bitter gf?

TLDR: My bf has been hanging out with his new friend all week so we haven’t talked much. I’m upset about it bc I’m used to talking with him at-least 3 times a week and that’s been completely shattered. I wanna tell him I’m upset about it but don’t know how to without coming off bitter. How should I approach this?