Why do people get into relationships just to treat others like trash?

I don't think they mean to treat each other like trash at first. It just happens when relationship goes wrong.

Well i just got divorces BCS of it. I loved my wife, but i put the end on it bcs of bad comments, nagging and bad energy

Some people really don't want to be single.
And Some people don't think it's that bad.

Is the only reason we're here tonight, cos we're scared to be lonely?

Some don't care and some are too dumb to even know they are doing it .