You're kind of exaggerating the situation. A lot.
If someone wants to be left alone, leave them alone. Or at least back off some. Whether or not it's someone you've talked to before, not everyone appreciates being bombarded in a chat.
Our moderators will never ban you unless you do something to deserve it. So just behave yourself and don't freak out about it. Even in the off-chance that you do get banned in error, you can always talk to me about it and see if it can be reversed.
Calm down, respect other people's personal space, and you'll be fine. It is not the end of the world.