I think the issue with Munchy and friendships is that because she watches so many films/TV programs that are aimed at teenagers, she sees their friendship groups represented and doesn’t appreciate that that’s not now it works in your late 20s!
In my teens and early 20s, I had big friendship groups and was constantly going out and socialising, because while we were at uni, that was probably our main priority. Now, I have a relationship, home and career to maintain, and I’d rather put my time into those things. I have two close friends who I see/speak to weekly, and a handful of friends I catch up with monthly or so, and I feel like that’s fairly common for adult life, because your priorities are so different than as a teen, and that’s without factoring kids into it!