How can you tell if your boyfriend is going to breakup with you?

He avoids you, acts different, possibly ignore you.

He'll say that he needs to talk to you.

He becomes very very distant even when you're together...he just acts very different and yeah ignores you to a certain extent

You never really know. If you're concerned, just ask him. Sometimes guys go through phases where they'll become more distant, or just more complacent, in relationships, though it doesn't necessarily mean breaking up.  Best thing to do is ask.

1.He starts ignoring you..
2.He doesn't call/txt you much..
3.He might give silly reasons to just not to meet you..
4.He gets irritated on you more frequently..

You kept a secret from him - something he just hates... And he has found out by sheer fluke.  And he doesn't look happy to see you.