OMG!!!!!! HELP

Yesterday my brother and my dad had their boys night out(and in because they stayed the night), but it wasnt just them it was also about four or five of my brothers friends. now my dad consides it tradition to bring along one or two girls with them(to keep them out of any real trouble) so when they were deciding i walked downstaris and then one of my brothers friends pointed to me. well since they couldnt bring their girlfriends i went. some people think that guys dont like to spend money but oh my gosh i spent money on everything!(my dads money). we went bowling, i didnt win but i didnt lose. then we played soccer, on this really nice field, then we ate dinner and then we had milkshakes and ice cream and cake. abd then we played this one really stupid game that i hate. and then we played monopoly and everyone ended up hating me because i wouldnt trade any of my places with them. then we took free kicks in my backyard. and then we watched a bunch of movies and stayed up untill five in the morning. now my mom has this rule where i hae to sleep downstaris whenever my brother has friends over. and i get to spy on them. so i slept on the couch and they had to sleep on the floor. it was really cool! even though it most deff. wasnt ment for me. i am spending so much time with my brother i am going to miss him so much when he leaves for college. why did he pick now to start being nice to me?