Dear Stupid,

As my beloved mom is wont to say, "Shit or get off the pot".  Three years is a pretty good chunk of time. You should know how committed you are to your partner.  After 3 years, if you treated your boyfriend indifferently, it seems like you were sending him a signal that it was time for a change, even if that's not what you really meant.  Your boyfriend told you that he's starting to date which means he picked up your signal.  Instead of just writing to "LoveAndLearn" (which by definition is a good thing),

Discussing it with her boyfriend would be good advice if she STILL HAD a boyfriend. It's too late now, they broke up already!

why don't you discuss this kind of stuff with your boyfriend?

In addition, counseling by yourself and/or with your boyfriend might be in order.

Or he is just not right for her

It's a good bet that you were pushing your boyfriend away because of a fear of commitment.  Don't you think it would be a good idea to figure out the real reason why this happened?

Unfortunately the ball is no longer in her court

I think you owe it to yourself and your boyfriend to either bring your relationship to a conclusion that makes sense, or rekindle the fires and get back with the one you might very well love.