My boyfriends son is destroying this relationship. How on earth does one deal with an almost adult that is prone to temper tantrums. I have never seen a teenager behave like this. Me and my son are feeling it but dad just keeps giving to this brat. Just got a car. My issue today him having his girlfriend sleep over through the week. I wouldn't allow this for my own kids. I relented and said I would deal with week ends but apparently I don't get a say, he had her stay over last night. So my boyfriend and I have had a rather big fight again tonight. Any thoughts?