Yes I love speaking with couples who have lasted so many years, my parents are in their 70s and been happily married since they were around 20, both my brother and sister have been married happily for 25 years now too. Hell even my nieces and nephews are starting to get married! So I have been surrounded by it however sadly never found it for myself and had a different childhood/teens to them. Interestingly they all grew up as Christians and bro/sister met their other halves via the church so there's something that can be said for traditional values sometimes whereas I deviated away from the church thing in my early teens.
In regards to your question I'm single, overly choosy, and admittedly unhappy with my current situation at the age of 41. I'm also feeling rather stuck/hopeless but at the same time in a dating hiatus because I got tired of it (at least temporarily). The either me not being interested/feeling enough of a spark and having to let nice people down (which makes me feel bad) or the other way round happens and I like them yet it gets to 2/3 dates before they disappear or their other hundred options come into play and it started wearing on my mental health. The problem is I'm no happier sitting on the shelf either especially in my early 40s and not getting any younger.
I do have a couple of 'casual' options, one being a lovely girl in her 20s (spoke about her a while back on here) who I actually would date, we get on like a house on fire however as far as I can tell she's not looking for anything serious and that does not do me much good in the longer run outside of some nice company/fun from time to time.
Guess I'll get back on the horse again in a few weeks.
As @rainbowsandroses would say, time for a run I think!!