Yes, I'm not married, but i had some serious relationship, the last one was four years ago. I think physical attraction is something temporary. To be honest, for me it is essential, although there's people who don't care much for it. But even if the person is beautiful, is not it that holds a relationship unless both people involved are brainless and shallow. Already happened to me bizarre situations where suddenly I start to get pissed a lot with my ex, to the point of not wanting to see his face, and he never did anything wrong, he had always treated me well, but for a reason, I began to despise him. When I went to think about why it happened, i concluded he had very different values from mine, and he was someone who simply didn't add anything in my life.
I think you have to ask yourself if you and your wife still has something to do with each other , and if your lack of attraction has something to do with your relationship being bland. If you don't have financial comfort, similar ideas and nothing to hold the relationship, is complicated.
My mother is married to my father 35 years, and she says that there comes a point that the husband is like a friend who you have ***. There are times that there is a passion outburst, but others may be indifference. And that's ok, people are not formulas and predicable. There's no love like cheesy romance movies.
Also, some people find that getting married is something that is compulsory in life, and is not always true. I am a person who tire quickly of things, and I don't know if I'd be happy in a relationship and try to "last" forever.
I would bother with the lack of excitement in my personal life, but there are people who like comfort, so everybody works differently. That said, it may be phase. Do not expect to want to have *** with her all the time like when you was a teenager.
Is that what i think, but give time and see if the lack of excitement persists or not.