ur dad is being very selfish putting u and the rest of ur family through this,,i dont know wot age u are but im sure ur suffering very badly,i went through something similar when i was younger ..in the long run it would be better for ur dad to find his own place,believe me,it would be better all round and maybe he will get on his feet when hes away from ur mum,,i think the breakup is too hard for him to handle and im sure he loves u very very much but he shouldnt do this type of thing in front of u and let u hurt even more,as i say he is being very selfish and he cannot see through his own hurt that hes hurting everyone else,,so better he gets out and lets u and ur mum get on with ur lives untill everything is back to normal,,good luck and i hope everything works out well for u in the new yr..