Should we break up? how can i forgive him?

I would think that if he really "wasn't thinking" he would consider having you go with him. That seems odd to me. It's almost like he doesn't want you to go with him if that's the case. Was your dream to go with him originally or just go in general? If it was to just go then.. it's not really spoiled but, then again I too would feel a little bit of hurt.