Should I tell off my girlfriend?
Why do you want to tell this girl off?
She is too bossy and painful to be around with.
You need to try to figure out why she is that way and help her out. Maybe she doesn't know she is doing it.
Nah. I have no time for that, she needs to learn if she treats me like crap.
If you tell her off chances are she won't become more understanding and treat you better. Why not just talk to her and find out why she is treating you this way? At least this way you can possibly begin working on any issues she has with you.