I don't think I have ever really loved someone, but I had a bit of a nasty breakup a few years ago - we had dated for about 18 months. I allowed myself to feel completely sorry for myself for a few days, and then decided that it was time I got dressed and did something. I deleted all my texts/emails from them, and went ice skating I think (because I hadn't gone for ages and it was exciting). Avoid drinking because if you're a bit upset it only heightens the feeling. I went and visited and friends and made an effort not to talk about it, and distracted myself for as long as I could basically. Maybe it's not so simple if you loved someone, but after a while I felt like I had got a bit of distance from the whole thing, and it was a bit of a claustrophobic relationship anyway, so I felt better and realised that life could go on, even if it was actually quite different.
Hope there's something in there that helps, even though my situation was pretty different to yours. And I hope you feel more cheerful soon, and that you and Micala can remain friends.
To summarise this little ramble - time cures most things. Except suspected pregnancies.