Tell your dad all the good things and the lies :)
You can act like you are getting your brother something if you have a brother
If you are underage, he is right to be careful.
Be like: Why did you break up with me? did i do something wrong and let him answer really clearly!
Well to no is when you say something and hes like yyyaaa you no somethings wrong so tell him
Easily do something you promised you would never do. like tell her deepest darkest secret.. No that's wrong... if you are single and she has a boyfriend kiss him....and tell her that payback sucks..or do something that she hates.
she still flirts with because she is probably trying to make her boyfriend jealous... or get him back for something he did.
Is he antisocial in general? If so then try and get him talking about something he might like or get him into a new hobby. Try and find maybe something that you both may like doing together.
Talk to him about the situation, and see if you can reason with him but if he starts hitting you then stay away from him, and if you think somethings wrong ask him if something in his life happened recently like someone passed away or their is something wrong with his family
You can start by learning proper grammar:"What is something sweet to say to your boyfriend when he asks why do you like me?"
If he really loves you, he will act like it and you won't have to ask. If you need proof, there's already something wrong.
If you are suspicious of something, confront him with what you know and ask him if what you know (if anything) is true and ask him if he would like to talk over the rest of the story.
if he did anything wrong and he were like most men out in this world he world try everything he can to get her back, but if the woman did something wrong they pretty much just broke the mans heart that's if he loved her