Generally speaking, if a girl ignores her boyfriend she's pretty mad at him about something. Best thing to do is show her some TLC (Tender Loving Care) and find out why she's mad.
Alternatively, sometimes girls ignore their boyfriends because they need some space apart from them because they may feel like too much time is being spent and things are feeling stale. In that case, its best to just let her have her space - she'll come back when she's ready.
ignore her or tell her to back off
ignore him or kill him.
ignore her
That she isn't ready to have a boyfriend yet or she is to busy for a boyfriend.
Well, WE certainly do not know the girl or what could possibly be on her mind. If I were you, I would either 1) Ignore it and go on with life. or 2) Go up to here and say, "I noticed in 4th period you were staring at me." She will either respond, or blow you off, in which case you can ignore her and go on with life.
Well why would you want to ignore him?
If your friend is working with another girl to try and break you and your boyfriend up, she is not your friend. The best thing to do is make your boyfriend aware of their game and ignore them both.
that she likes you
She could have a boyfriend and is busy with him. The best thing to do is simply ask her.
How reliable is the the source and who is the girl? If it's not a good source ignore it. But if the source is reliable ask your boyfriend or the girl. Do it in a private place though, guys can lose their ego.
They mean Boy Friend and Girl Friend
Whenever she's mean, just ignore it. Always be nice to her. No matter what.