Hubby broke up with me

After 12 years, my husband has decided we need to "split up". He moved to the basement. We have had a rough few years. I doubt this lasts long but I'm just so confused. I don't know what to think or feel. I am a little upset but I feel like a robot with hardly any emotion. I just want to be a happy family but we are far from it. I don't even know why I am venting on here. Just have no one to talk to I guess.