Mine would have been ruffled too, since my GF & I trained together. We even hold hands UW to not drift apart when there's current.
I'd just add this - your first dives will be with dive ops, not "solo" or "duo" dives without a team or a guide. You'll never be alone.
The "crew" makes sure they know everyone's expertise level, and will stay close to the beginners. It's the DM's job to keep you safe and under a watchful eye.
You want a buddy that values your life MORE than his own, who better than your Significant Other ???
To not be too serious, your buddy is simply the person you keep in your POV and the first to share air with. Beginner dives, you'll be forced up to the surface one 2/3 of your air is used up, whoever gets to 2/3 use first.
Typically when I'm at 800 PSI my GF is at 1200, we're forced up to the safety stop.
On boat dives, the first is deep, up to 100', and the second is up to 60'. You'll probably just be UW for 30 minutes on that first dive. Women have better bottom times on average, cut short by their "hubbies".
So, I am a very new diver. So is my husband. I told him I want to buddy with someone more expirienced for my first few dives. His feathers got all ruffled. Would you be ok having you SO buddy with someone else? Also, as an expirienced diver, would you be ok buddying with someone new? I could be way off, but I want someone to tell me when I am doing something wrong, and hubby doesn't have enough (any) expirience.
Thanks!