Is there such a thing as having more than one true love?

That is the thought that crossed my mind today as I attended a funeral for an elderly lady in my ward today. She was in her 90's and just the sweetest lady. For the last couple of years she has had a special friend. Her husband passed away in 1990, and his second wife passed away a while ago. They found each other and were just good friends.
Today as I sat at her funeral my heart ached for her Special friend. This was the 3rd woman he has lost to some sort of sickness. He is a sweet, sweet man. I believe that her kids wished that they would have married. But there he sat on the almost back row of the chapel with 4 of his 10 kids. And I just kept wondering in my head is there more than one true love for people?
I have always told Josh that if he died I would never remarry, because no one will ever treat my kids like their he does, and no one will ever treat me as well as he does.
But then in the same sentence I tell him that if I die he should remarry and get someone who will treat him and the kids great.
I just feel that although I could remarry I would never love that person like I love Josh. I wouldn't marry them in the Temple, and I wouldn't want to be buried by them either. To me Josh is my one true love, he is the one that I want to be with in the here after.
But on the other hand maybe some people don't have that relationship so I guess anything is possible.