I feel like I don’t have any friends

I’m 25 years old and I have two close friends but I’m starting to realize how lonely I am and craving more friendships. My one friend is a bit toxic and very self serving. While my other friend lives far away from me and I only see her every so often. My boyfriend has so many friends and it just makes me sad that he has so many and the friends I have seem to be absent from my life. We’re planning on getting married and I realized I don’t even have a best friend I would want to be my maid of honor and I wouldn’t have so many bridesmaids like how my boyfriend will have so many groomsmen. It’s weird I’m 25 and I don’t even know where and how to make friends. I’m no longer in college and I don’t have any friends at work. My boyfriend mentioned that his roommate/friend wants to go out with his girlfriend + us. So basically a double date but I don’t even know if I can rely on a friendship with this girl I haven’t even met yet like I hope we’ll be friends and I can’t wait to meet her. I just wonder if anyone else here knows the struggle. It’s a very unfortunate situation and I would love advice if anyone here has any :(