Salam Alaikkum
There are many people who did alot of worse thing to me and alhamdollelah although I felt worse on occasions I never did once take revenge, giving the best example is my ex bestfriend & Eldest sister.
I suffered from my eldest sister for 3yrs, name it all, not feeding me for a month, treated me like a slave, accused me of flirting with her husband (I was 16), took my salary for 3yrs, not allowing me to watch tv and basically made my picture really bad in front of just anyone. I had patience alhamdollelah (I dont have this patience now and I want to gain it back inshallah)
So when she hurt me (slap, pulling my hair till end of corridor) in front of my brother & bro in law, then that's how I run away from her with my brother.
There I met my new pregnant ex bestfriend, 3yrs without freedom makes me excited to meet her and I treated her like my family, indeed I am not good at expressing by words but I truly loved her, unfortunately her husband is not a responsible man. So I end up buying everything for her upcoming angel, name it from crib, milk, clothes and even the hospital bill. They're all credit, I am not millionaire but comparing to her husband, he didnt even bother to get a shirt for his coming son (she's 2nd wife and he is not lazy infact he is working at prestigious company). When delivery day is soon to come I also remember sleeping over coz I fear she will deliver anytime soon. Birth day come and yes I was in delivery room & her husband was sleeping, the next day he told me 'you know I am thinking to go to Dubai' uffffff he spends thousand of dinars for roaming the world...
So anyhow, day come that she is asking me loan on daily basis and I told her for once that she must speak to her husband and make him responsible for her kid, she got mad and told me 'if you dont want to give loan, just shut up...plus she didnt talk to me for 3days
Months later she finished her loan and spread nameema (gossips) about me, I felt bad many times but I had patience and let it go.
It hurts alot but I knew within that its not my lost after all.
Now if you will question me, whether I will do the right thing, I would say yes, and Subhanallah when everyone abandoned my sister's 1st son when he needed heart operation, I stayed and Allah made me an instrument and 2yrs ago he undergone open heart surgery, Praise be to Allah he is back to school since then.
This Ramadan also, I made peace with my eldest sister, i dont like to befriend with her but I told her 'I want peace with you and inshallah let's not talk about the past'. Since then we never fight, she knows where she stands and she cant hurt or manipulate me anymore. If you would ask me, personally I dont need to be close to her and I dont need her in my life. But I fear Allah and I do it for mom's sake too. I just hope my younger sister who suffered from her in few months will find it in her heart to forgive her.
For my ex bestfriend, I made peace with her & she ignored me, yes she is big proud, that's the problem.
if my ex bestfriend come to me for help, I would definitely help her but no way I want communication with her. Not helping her would make me feel bad in the end, helping her will help me heal completely.
In the end of the story, I believe it is all between me & Allah, if I was good, alhamdollelah, if i were bad to them, i will surely get my punishment.