Guh.
God this is a bad OVA. I have not read the original manga, but I watched this out of some twisted sense of curiosity. By the end of the anime I could care less about the cardboard-cutout stereotype waffy-uke and emotionally-stunted seme and just wanted to smack them both.
Here's a general rundown of what happens: they get together, then break up for no reason. Angst ensues. This happens OVER 9000 times in a forty-five minute period, and at some point, Izumi is so angst-ridden he COUGHS UP BLOOD. I think there is some Magical Soul-Healing Buttsecks (R) in there somewhere.
Whatever.
If you are desperate for your yaoi fix, read a naughty bedtime story or a doujin. This sort of anime right here is one of the reasons the genre is so hated even by gay men themselves.