What Should I Do?

My boyfriend has been acting really weird lately, and I eventually got the 'reason' out of him. "I just don't like you anymore." 
But that's not the end, because he wants to see his physciatrist before he breaks up with me. He told me this was because he was going to 'miss me' and regret dumping me. 
I didn't emotionally respond at all during this, and when he told me he didn't like me anymore I actually responded 'I know.' Which shocked me even.
So we're still together, it's been three days. But what the fuck do I do?
I feel like it's unfair on my behalf because I shouldn't be with someone who makes me feel like everything is unrequited. But I love him.