I think it is odd how you look at your relationship. Shouldn't a relationship be about your commitment to eachother and the "relationship" that you have with that person? I split everything with my boyfriend, but if I were married I would want to have our bank accounts pooled together because I would assume we would pay the same bills and all. Right now I live with my boyfriend and two other guys so it's an odd situation. If I were your girlfriend though, I would be mad that you didn't tell me you got a raise, what's the big deal? And I would feel hurt that you didn't trust me with the information or feel comfortable enough to tell me. I agree with having personal money, but I don't feel like it should be so much that you could just go out and buy a bike or something like that, that is a lot of money and could be used towards something else more important, at least I feel that it should be discussed and agreed upon when a large amount of money is being tossed around.