I think the Op main issue is he is more comfortable marrying the the girl character that own by girl IRL because he is straight.
I admit most of my character in other MMO are female except that race is not human or less human.
I am straight guy IRL but I'm not really enjoyed chatting with girl ingame and their character design are mostly out of my taste, I mostly enjoy chatting with dude in game because it's more joyful to me.
I more tend to fall in love with the character that designed by men than women, so for eternal bonding I'm not really concern as long my partner character is female and somehow I'm hoping that he is gay less awkward I think.
But I will not perform eternal bonding with my Lalafell because I'm not really comfortable with it.