Um..what does this mean?

My boyfriend just broke up with me yesterday through facebook. See,the thing is that he asked me out through facebook also. We haven't even seen each other! Although,when we were going out he did planned on us going to the mall like 4 times already but we were both busy in those days,but im guessing its too late already :(. The reason why he broke up with me was because "he doesn't love me anymore". That's what he told me. Why would he not love me anymore if we haven't even seen each other? Im so confused..and heartbroken...