You are smart enough to know when you are beaten, you will clearly never find love, so why bother trying or putting forth the slightest amount of effort? You have decided to just give up on life and mooch off of your parents.
"I knew you would come crawling back. I left your room as it was." That's your mother, her name is Mom. She's nice.
"Son, I am disappointed. But mostly happy because now that you're back, I don't have to do any chores!" That's your father, his name is Dad. He enjoys shirking off his responsibilities and using his children for virtual slave labor.
"... uh... hi big brother..." That's your sister, her name is Sis. The last time you saw her she was just a kid, somehow sense then she has gone through puberty and is now of legal age*. When did that happen?
Now what to do?...
*see age of consent law for your local area.