I agree with your points...the daily grind of living wears down a marriage...so many things to fight about...argue about...feelings get hurt...we feel taken advantage of....like you say...we often forget why we fell in love with our spouse in the first place...
But...I believe one of the benefits of marriage is you can be comfortable in the relationship without always having to prove something...as you say...we can get too comfortable...
Finally...we often arent good at communicating...feels like being attacked...or one spouse needs to be right...Frankly...having been married for 33 years...marriage is impossible...but thats what makes it so incredible.
Thanks for throwing more light to this using your own experiences. You said marriage is impossible and that's what makes it incredible....lol. since you have been married for 33 years, that means you have made it possible, some couples couldn't last 5 years. I wish you many more possible married years. Well done for coming this far.
Thank you..its a "day at a time"....