Could use some advice, am i stubborn?

Im going to keep this really simple please keep anon

I went out with a girl. We got on perfectly at start, we spent hours and hours together daily and really enjoyed each other company. One night she went out and cheated with another guy. The relationship was going really well and i liked her so i decided to forgive and forget. We carried on ok but we started to argue everyday over pathetic little things. Arguing took its toll on me and i was starting to feel down because of it. My friends started to dislike her because they thought she was bitchy, twofaced and caused stupid little arguements. Yet i really liked her so didnt end the relationship, she didnt want it to end either.

Then one night she went out and cheated with 10+ guys as far as she and her friends could remember. This really hurt me, more than the first time. I felt terrible, i couldnt eat or sleep for days, it really effected me. I decided to finish it. For a month after the end of the relationship we were still talking and aruging over stuff just like when we were months ago. I also found out she had been lying about us still having sex when we havent been. I had enought and after everything that happened blocked her on facebook, removed her number from my phone and ignored all attemts of her trying to contact me. I felt so hurt after her cheating and arguing i simply had enought. It wasnt the life i want to lead so i removed her from my life.

Now as i post this its been 6+ months since i stopped speakign to her. In that time her friends have tried talking me into giving her a chance to speak to me and she has tried texting/calling me but i ignored them.

Tonight one of my very best friends (a girl) has been speaking to her. She told me that she (my ex) has changed and shes a different person. But i still dont want anything to do with her and keep my position with her blocked on my fb...etc My friend calls me stubborn because i wont give her a chance, am i stubborn? or am i well in rights to not speak to her after her hurting me so much. My friend just simply doesnt get the amount of hurt she caused me and how bitchy/lying my ex really is

WHAT.
How is that even possible?
Did she have them lined up outside the bedroom door or something?
"Okay that was fun, NEXT."

Im going to keep this really simple please keep anon

I went out with a girl. We got on perfectly at start, we spent hours and hours together daily and really enjoyed each other company. One night she went out and cheated with another guy. The relationship was going really well and i liked her so i decided to forgive and forget. We carried on ok but we started to argue everyday over pathetic little things. Arguing took its toll on me and i was starting to feel down because of it. My friends started to dislike her because they thought she was bitchy, twofaced and caused stupid little arguements. Yet i really liked her so didnt end the relationship, she didnt want it to end either.

Then one night she went out and cheated with 10+ guys as far as she and her friends could remember. This really hurt me, more than the first time. I felt terrible, i couldnt eat or sleep for days, it really effected me. I decided to finish it. For a month after the end of the relationship we were still talking and aruging over stuff just like when we were months ago. I also found out she had been lying about us still having sex when we havent been. I had enought and after everything that happened blocked her on facebook, removed her number from my phone and ignored all attemts of her trying to contact me. I felt so hurt after her cheating and arguing i simply had enought. It wasnt the life i want to lead so i removed her from my life.

Now as i post this its been 6+ months since i stopped speakign to her. In that time her friends have tried talking me into giving her a chance to speak to me and she has tried texting/calling me but i ignored them.

Tonight one of my very best friends (a girl) has been speaking to her. She told me that she (my ex) has changed and shes a different person. But i still dont want anything to do with her and keep my position with her blocked on my fb...etc My friend calls me stubborn because i wont give her a chance, am i stubborn? or am i well in rights to not speak to her after her hurting me so much. My friend just simply doesnt get the amount of hurt she caused me and how bitchy/lying my ex really is

Tonight one of my very best friends (a girl) has been speaking to her. She told me that she (my ex) has changed and shes a different person. But i still dont want anything to do with her and keep my position with her blocked on my fb...etc My friend calls me stubborn because i wont give her a chance, am i stubborn? or am i well in rights to not speak to her after her hurting me so much. My friend just simply doesnt get the amount of hurt she caused me and how bitchy/lying my ex really is