first party member

A friend of the same gender who you are so close to that you both start to feel that there is romantic tension between you, however, you will never explore these feelings because according to the devs, you are heterosexual, and you will likely marry someone of the opposite gender, whom you have no chemistry with.

"Hey man, I just wanna let you know that I think you as my first party member. You've been with me for the longest of all my friends, and I truly do love and believe in you. Like, I really do cherish you and feel safe around you. But again, I just think of you as a first party member. No gay shit."