Maybe she is not interested anymore, or she is just busy. Don't message her again. Just wait and see what happen. If she doesn't reply move on there are plenty of girls out there. This happened to me recently and I moved on.
not to be stupid
It is clear to us that the boy does not want a relationship with you any more. We suggest that you begin looking for another boy. There is no point in wasting your time on someone who is not interested.
If you are smart, you won't. Otherwise, she may just stop replying at all.
If the person starts fighting with you for silly reasons, stops attending your calls and stops replying your messages, tries to show that he/she is busy when you know that he/she is not, stops hanging out with you and various other things; then the answer is most probably yes.
If you don't want to talk to them why are you replying to their message. Just ignore them they will soon get tired of sending messages
When you make complains about a famous girl not replying emails, she may feel indebted to her fans and start replying emails that she deems satisfactory.
Is she replying back
It means that, hopefully, you're making to big a deal about it.
replying to clear this
It's not a bad thing unless you are sending her many texts and she is not replying
The phrase 'am no replying back to you' is not a sentence and is not correct grammar.
He is either thinking that you are bored with them, or you are growing apart.