I agree.... Some are single and they are perfectly content. I believe even people that consider themselves asexual are one of those single ordained people but many who claim to be asexual are in the world so they don't recognize the calling... If you have a desire to be married then I believe you were called for marriage... The bible says God WILL answer our prayers and though it tarries wait for it, it will surely come.. I started praying about my God ordained husband eleven years ago and as of today still very much single with no sign of any husband ever and I'll be 40 sooner than I'd like to admit lol so I have asked myself this question many times about singleness and marriage..all I can do is trust God's timing and know that He knows..
I was married at 17 which was a mistake and ended in divorce 6 years later in my early twenties. Then 35 years of single, but I wasn't walking with God during some of those years so had a few relationships that weren't done the right way. I didn't know what to pray for because I had been married and the divorce wasn't because of adultery so I felt I couldn't remarry.
I would just say to God that I didn't know what to pray for in the area of marriage and left it at that. My ex-husband had remarried right away and that may have released me for marriage but I wasn't sure so I stayed single. In 2010 he passed away.
I met Tourist on this site and we were married and we were both 59 so don't give up hope quite yet as it can happen if it is what you desire. Tourist had been praying so God answered both our prayers even though mine was I didn't know what to pray for...God knows our hearts and has a plan. Better to wait for the right one as we fit together like a glove.