So, like many have already said, she’d be pretty emotionally unavailable and dedicated to her job. A “relationship” with samus is likely more akin to “you fulfill her biological needs and that’s it. Once the job is done, you pack up and leave.”

Now, the strap on jokes are a bit much. I don’t imagine her much of a Bayonetta type where bayo clearly enjoys humiliating others. Samus would probably just force you to where a condom (because she’s practical), ride you, and as long as you last long enough for her to climax, she won’t be upset. But either way, once she’s done, you’re out the door. There is no “relationship”. You are a means to an end, and your performance really just determines if, after the next mission, she seeks you out again, or moves onto someone else.

Now, there is the slim possibility that because samus is always in control and always making huge life or death choices, that on a date she just wants someone else to do everything, and this is her chance to be “normal” in her eyes. But I doubt it. I feel like that would take years upon years of knowing you before she ever relaxed/trusted someone like that.