Should I reactivate my facebook, or leave it closed ?

I've had facebook since 2007. Over the years i've deactivated/reactivated my account A LOT. My email that was associated with my facebook got hacked a while back, and I closed it. I was still able to log on to my facebook though. Lately I find that I use facebook to procastinate a lot ><. Thats why I closed it. I'm in summer school at the moment I'm taking an extra course. So I don't want to open facebook up again, or else I'll be on it. Also ever since I closed my facebook down only a handful of friends have actually kept in touch with me. It made me realize who are my friends, and who aren't. Lately I've drifted apart form many friends, and I feel like deleting a few off facebook but I don't want to be mean. So basically I don't know if I should keep facebook or not.