Give me writing advice! Please and thank you!! >v

So this is actually for a roleplay but I want tips on how I can improve this further so I can use it as reference
My writer side went out and I made my friend wait like 40-ish minutes for a whole paragraph
I didn't realize it got this long
The prompt was that MC got into a contract relationship with a mafia boss and they had to live in a mansion where the servants disliked them too
Also the mafia boss has a lover :P
And so the MC, tired of this treatment, ran away from the mansion and like idk 2 or a few years later, they met again at a jewelery store
(My friend turned the mafia boss into a sobbing, stuttering mess lol)
I just wanted to break out of the trope where the MC gets back with their ex (even though they were mistreated) and I wanted to convey her anger and stuff
What I'm imagining is that she never loved him or anything but she genuinely cared for him and tried atually helping y'know
Until she got tired of it and ran away etc.
I got too absorbed in it

Anyway, please give me some tips
I'm like, considering making an original story with original characters and all that but I wanna improve my writing first so I wouldn't have to make that many drafts (T ^ T)
(Note: I'm not thinking of being a professional author or anything like that, I just wanna write as a hobby :3)
Since its too long, I'll put the ss in the comments.
Please tell me where to improve, if its too wordy, if there's better words I can use on certain parts, if I can improve the flow, etc etc.
I'm sorry if I'm asking for too much, you don't have to offer advice if you don't want to.

Have a lovely day :>