How do I make and maintain fulfilling female friendships?

r/

There’s so much I can write here but maybe ranting while crying in bed isn’t the greatest idea.
In short, I (24, F) don’t have even one female friend that I am truly close to. I have a boyfriend of 2 years who I absolutely am in love with and several male friends that I care for and who I know care for me back, but I keep failing in maintaining my friendships with other women. Either I have falling outs or I just realize over time that I am the only one putting effort into the friendship by asking to meet up and do things together. And some undergrad friendships withered away when I moved countries for my PhD, which I mourn but understand. I know I am the common denominator in all of these failed friendships so there’s probably something I am doing wrong. I don’t know exactly what I want to ask but I hope to hear something that might just help.

TLDR- how can I maintain friendships with women? (With some added self pity lmao)