A boyfriend locked his longtime girlfriend, her sister, and the sister's two children out of his home after what he had determined to be a betrayal. He has now taken to Reddit to see if he was in the wrong. Now, this might sound really bad at first glance but give this guy a chance and let him explain. This thread was posted to r/AmItheAsshole by the guy, Reddit user u/simpleguyy6 (OP). OP thought that his house and belongings might be at risk if he allowed his girlfriend to have continued acce…