Bisexuality Support Group
Bisexuality is a sexual orientation which refers to the aesthetic, romantic, and/or sexual attraction of individuals to other individuals of both their own and the opposite gender or sex. Most bisexuals are not equally attracted to men and women, and may even shift between states of finding either sex exclusively attractive over the course of time.
i know it's kinda hard! but i hope i helped a little! :)
have a good day!
Im not to sure but a good saying that i like to use is "you have to become friends before you can become anything else"
The second option is that you could wait it out a few months and just explain the person that you are engaged to that you like your close friend and you jsut want to stay friends with him?. And as for your brother i think that he can get over it and find someone else.