Fortunately, I'm not married and have no significant other. That's probably a good thing, becuase I don't think I could control someone else's bouyancy along with mine!
However, in the OW class I carried tanks from time to time for the two girls in the class. Often we'd suit up at the cars and walk to the spring to dive, and they carried them then, but I'd throw them into the car for them or help them get into the BC. This was really not only becuase I was trying to be a nice guy but also because when we first started, they wre having enough trouble with stuff. By the end of the course, I didn't have to help them get into their BC anymore. I did redo a few things on their kit but made sure they watched as I moved this or that and I explained why I did it and from then on they set it up differently. I was new at it all too, but I read WAY ahead (I had finished the test before our first pool dive) and was alot more comfortable with everything.
If I ever do get a significant other (I've got plenty of years to try!) then I'll gladly carry gear. However, I will not pack it up or unload it for her. She'll be doing that herself. Not becuase I wouldn't mind helping, but because it is her gear. Much the samew ay, she could carry thigns to the car but if she moves anything of mine before I'm ready for it to be moved, I'll go out and bring it back in. I respect other people's stuff and I expect my stuff to be respected too. And I'll help her in and out of her BC on land, but not in the water: no one has ever died because they couldn't get an arm through a BC on the boat, but in the water you have to be able to do it yourself. And we would probably both do the BWRAF thing (always reminds me of giraffes) to each other's gear, just as a buddy thing.
Being female is not a disability, but it's not saying you are disabled to help a female. It bothers me when I open a door for a lady and she looks at me like "I coul dhave done it myself." It's common courtesy, I would open a door for anyone but a thief. I would carry tanks for a guy buddy, and I have. However, I won't flirt with a guy buddy. I also won't marry one. And I certainly won't become a member of the famed "40 feet under" club (is that the proper name? Heck, how can such an improper thing even have a proper name?) with one! However, I would never execute a Warhammer with a female dive buddy.