I'm luckier than most folk, I have to use both Canon, Nikon and others through my work. I even use Pentax as well, when folk are more worried about the captured image and not what it was captured on.
These folk do exist they are called photography professionals, once you gain their trust in delivering the results, they care less how it's done, which IMHO is the way it should be. I've never known other tradesman have their tool choice dictated too them.
Do enjoy the Swedish ladies, it's fine, fine equipment, if you don't get stunning results with her, I'm afraid it's down to you, so no excuses now. The Canon 6D can be your wife, but the Swedish lady will almost certainly become your mistress.
But for my pleasure I use exclusively Pentax, yes I have both my cake and eat it.