What is dating?
It is a temporary romantic agreement between two relative strangers who know only the basic facts about each other and who's intention is often to "test the waters"
therefore if you get LJBF the girl is ending this agreement.
when that happens there is no more agreement and you had best stop talking to her.
LJBF = END OF CONTRACT!
AFCs get that through your thick head! That is the first step to breaking the cycle of abuse that you put yourself through.
Sticking around when you have been LJBFed is like working for someone without getting paid.
You back away from this agreement just like you would any other agreement. You say thank you. If that person has more work for you (or rather the girl wants you again) then it is up to them to call you back.