To date or not to date?

[mikal]

I have this friend that I have had for about 5 years. When I first met them I was initial attracted. Later on down the road we had hooked up a couple of times but it was never serious. We are the greatest of friends, have a million things in common and even were roomates at one time. Eventually they wanted a relationship with me, even professed they're love for me on multiple ocassions but I never saw it going anywhere or just wasn't intrested in the idea. Two years later and still good friends I find myself getting slightly jealous when they talk about other people and I can't even think of any reasons why I shouldn't give it a shot. Except for the fact that I'm confused. Advice please!