How to get unblocked while being blocked!

The reason is because the other opponent has blocked you. This will come up:

If you did get blocked then I suggest to go on an alt and talk with them to get you unblocked and then you got your old friend back. It wont work all times but it sometimes does! If this doesn't work I'm very sorry for you but this is the only way to talk to a blocked opponent unless they have DMs off.