So there have been pros and cons with my marriage since joining the hobby.
Pros are pretty simple... I no longer look at sex with my Wife as my only source of release. This is pretty important because I used to always initiate it, and it began to feel like pitty sex. So I decided not to initiate, and we went almost a year without it. When I finally mentioned something about it being almost a year, she was like... Noooo it's only been a few months. Obviously this was a red flag for me. I had been loyal/faithful through her 3-pregnancies, but after 5-6 years of me just jerking the 1-eyed pony, I decided it was time for a change.
Now for the cons... A few days after my first FS session at an amp, my Wife decided she wanted to fool around. Normally I'd be good to go, but all I could think about was "what if I caught something from the provider? My wife and I don't use protection, and so my nerves were shot, my mind wasn't on the task at hand, and that's when I discovered why all you old fucks take Viagra lol.
Seriously though, it was the first time that I couldn't do the deed with my Wife, and it was a bit of a let-down for both of us.
Now that was a few years ago, and I still get nervous when we bump-uglies. But I get tested on a pretty regular basis, and try not to do anything too crazy or unsafe. But BBJTCIM is like my damn kryptonite.