One sided friendship?

Guys, how do you let go of toxic friendships/ one sided friendships

I have a girlfriend who on this earth would not come to my aid or just chill at my terms, everything is always on her terms.,,anytime we link up it’s always at her liquor store where she makes me spend money even on days i don’t want to ,like say I don’t have money for liquor and opt to buy one punch for myself then she’s like if you just want to take one then buy me one. For some reason i can never say no to her., but mm just asking for a favor she’ll come with a million excuse

I feel like shit cause for some reason,i feel,,no,I know it’s one sided .

I might go mia., then one day she’ll hit me to hangout then it’s another cycle of spending money unnecessary

What going on,i need insights