Should I forgive my best friend?

We have been besties for 3 years and even when we fight we cant last 2 days without getting back in touch.

Last week, i texted her to ask for advice and she immediately hit me with "oh ur forgetting im leaving for a vacation tomorriw but u always think about yourself"

I apologized bc she didnt talk about her vacation much and I forgot and she never told me an exact date. So told her that but she kept on going. She told me how much i annoy her recently bc i always think about myself and talk about my stuff and not hers. But i dont agree bc the last few times we only talk about her guy problems. I think theres balance but since i love to talk maybe i couldve been carried away sometimes. Anyway, i said i dont wanna fight before her vacation but she kept on going. Then i said "fine thanks for being honest about how much i bother u. Dont text me again" she said "wow now im sad before my vacation bc u know how much i hate fighting" i said "well u started it and kept on going" basically she told me things she had been hiding all along and it hurt me hearing how much i was annoying her at times but she still admitted she loved me and couldnt without me.

She texted me last night and i am still hurt but i miss her. I know she's sensitive and i dont want her to be sad on her vacation. My mom told me to leave her. But all in all, what should i do?