Is it normal that i want the people be unhappy whom haven't ever seen

ok well.i know it sounds a bit weird but it's quite true.my b/f and me was planning to engage.but at the same time his elder bro was also planning to marry.but he had no money and it was my b/f who had to bare all expenses and organize wedding.and as a result we cancelled our plan due to financial issues(cause he should deal with his bro's wedding plans.actually i tried to save both his and mine proud and offered break up cause i knew that sooner and later he will confess that he can't organize both of our engagement and his bro's wedding simultaneously).i knew that he would prefer his family that's why i felt too hurted and we quarreled.now we are talking like friends.i really hate a bit my b|f cause he preferred his bro not us.and now they will marry in june but we broke up.i'm single and hurted and alone but they are going to have family on my tears.is it fair?till yesterday i still had hope that may be after wedding we can do something but i learned that he borrowed so much money in order to meet his bro's wife's demands)) what's my fault?i hate his bro and his future wife.i can't help but want them to be unhappy cause i'm unhappy now through them.i don't love my b|f anymore too.cause he broke my heart too badly.but still want to keep him by my side to spite his family.it's like a war.and i should win.i hate all members of that family my ex b|f included.cause they hurted me so deeply.they preferred that girl not me.i wasn't important to them.i hate them.is it normal?