"I'm currently seeing someone."

I don't know if those 4 words have ever hurt me as much as they did tonight. A guy I had been seeing a few months back and I had a falling out. And I can't stop thinking about him. And I want him back so badly.So I texted him tonight. And he told me he missed me and that he thinks about me too. And then, after I asked for a 2nd chance, he said it:"I'm currently seeing someone."And all I want to do is cry.I just wanted to get that out there.