This is exactly what has happened to marriage. I was so opiated and asexual that we like never fucked...and then when I did get urges I would just "handle" it myself in the bathroom like a bodily function that had to be releieved...with my wife right there willing to fuck if I asked.
Porn addiction is also a factor I've become more preferential to porn because he can be over so quick. I would literally rather jack to a porn for 2 minutes than fuck the porn star in the movie and deal with having to interact with another person. I'm very antisocial in general too (hate clubs bars, barely stay in contact with family etc.)...so I wonder if that's why I prefer a computer.
Whatever the reason there is alot of guilt like I feel like something is wrong with me or my partner.