I have complete and utter respect for the sheer ride-or-die-ery of Tali’Zorah vas Normandy and Garrus Vakarian.
You stumbled upon these two back in the Citadel days and even with cultural/racial boundaries became the greatest and closest friends in the galaxy, and at every turn you’re either there for them or they’re there for you. Tali’s on a planet with a dying star, surrounded by Geth and death, and her thoughts are “I wish Shepard were here.” Garrus Vakarian was a few moments away from suicide after being alone for far too long with mercenaries gunning for him from every angle but the moment he saw an N7 through his scope he knew he’d make it off Omega. Your fellow Alliance crew member who was with you since you were both assigned to the Normandy before ME1 even flakes and waivers, Liara is off chasing her own leads even though she wants to be with you, but those two are right there beside you; every time, every game. Into Ilos, into the Omega 4 relay, into the heart of the Reaper threat.
I love them so much, even when not romancing them. They’re Shepards by blood shed together and battles fought.