A person who identifies as having a sexual attraction to one gender while only having a romantic attraction to the other ( homosexual and heteroromantic , or homoromantic and heterosexual ).
I am sexually attracted to men, but only emotionally attracted to women; therefore I am birosexual.
bertisexual is when you are attracted to somebody who is defined as berti but his real name is not berti. infact we are all in love with berti even berti himself, therefore we are all bertisexual