My dearest friend is going through a divorce that she, at first, did not want. Now, after seeing her husband of 21 years act like an actual 21 year old, she is sure she wants the divorce, but she still loves him very deeply. I see how hard it is for her to understand why she would still love him when he doesn't wish to be with her, and I feel so sad for her to have these doubts about the person she is and what she could have done differently. My friend just takes it day by day, and hopes that when the divorce papers are finally signed, she will be able to let him go from her heart. I know that isn't really advice, but I just wanted to let you know that, if the worst happens and your husband does not wish to remain married, you won't be the only one that still loves her ex, no matter if he is a jerk or not.
What does puzzle me is the view by so many that marriage is not good if you are like "room-mates". When I married my husband 25 years ago, I never had that physical spark with him that I had with other boyfriends. However, I knew he had strong family values, he was a hard worker, and family was the most important thing in his life. I was willing to put aside hot nights of abandon for a man that would stand by my side until the end of my days, even if he was just a best friend.
While there have been times where I have yearned for the hot nights of abandon with someone else (and perhaps my DH has, too, though he has never indicated that), we have a great life together. My DH IS a hard worker, a fantastic father, a caring man, a man that pretty much gives me whatever I desire (a vacation, a new dog, a new Dyson

), and even gave the green light to build out our basement so my mother with Alzheimer's could move in. How many spouses are going to allow that to happen?
Those hot nights of abandon only last for a few hours, if that. A wonderful husband and loving father that will be by my side to the end, that will last much longer than a few hours of pleasure.
Sure, it would be nice to have the whole package in a marriage, but I don't, and I am not going to think of only my wants and leave my DH for my own desires. After all, my dearest friend married a man that was all about the passion, and 21 years later, he still wants that passion, just not the marriage and children. I see that, and I am even more convinced that I made the right choice with my steady, unwavering husband.
So no, I don't think a marriage of "room-mates" or "friends" is necessarily a bad thing. If your spouse fulfills the other things you value in a marriage, then I don't believe a marriage of hanging out on the porch in a rocking chair, watching the world go by with the man that has been my room-mate for 40 some years (God-willing!) is a bad way to say good-bye to life.
Just an aside, but if my DH ever abused me in any way, that I would not put up with. Lucky for me, he doesn't have that much range in his emotions!