Great article, my early relationships (with parents) were very insecure and I carry those doubts with me now into adulthood. I'm never entirely sure how much I love my wife, if we're right together or what normal is supposed to feel like. But we make effort to actively love each other every day, talk and listen to each other daily and don't hold grudges.
We've had some very rough patches in the past, especially after our son was born. Sometimes the only thing that's kept me in the marriage is my grim determination to not let it fail. It's been very hard sometimes, harder than I could have ever guessed.
After I had therapy and my wife got medication, we're doing well lately (last two years) and hopefully things will stay good in general into the future.