Probably only a married man will understand it. Tomorrow is my 15th wedding day, and I can confirm this, to be 100% true. If you just accept this, your life will become so much easier (Truth be told... sometimes, we like it like that)
I found this shirt in Croatia. It was worn by a tourist who is now married for more than 30 years (happy as he told me). And he agreed to me making a pic of it... Later unfortunately I was not able to find that shirt for myself, so if someone could find it in an online shop, I would be happy to know about it.
(Pic shot with Lumix G80)