do you think I have a right to be mad?

[crazychick1]

ok so in all seriousness my dad before I was born and my older sister was still in my mom's stomach cheated on my mom and got a girl pregnant and he is now 17 two month's and six day's older than my sister but his mom contacted my sister and said do you wanna see a picture and we did my dad kicked her to the curb when she told him she was pregnant and when she got married he didnt have to pay child support and they only told him that he did not have to pay and there is only two option's either someone adopted him or he died and my mom asked my dad if he died and my dad said fianlly and now I am upset beacuse he could not careless about his chiled and alex that's his name never got to have his dad in his life but what's more my dad couldnt give a crap and I never got to know my brother.
SO do I have a right to be mad