Can you be bisexual for one year then change straight?
Yes and no. Research done by the American Psychological
Association (APA) has shown that it is not possible to change your
sexual orientation from a homosexual to a heterosexual and
vice-versa. However, there have not been many studies or researches
done on bisexuality and its flexible nature.
Being bisexual means you can choose which "lifestyle" to follow
and stick with it. That is, you can decide to only date and have
sex with the opposite sex, or you could decide the same with the
same gender. In this aspect, it is possible to choose.
Can you ever stop being bisexual? No, that is not biological
possible.