Where I can read about soulmates vs lovers in this life

[luffy28]

Hi,
I wanted to know where I can find info to read online about soulmates vs lovers in this life. The reason I'm asking is that the only thing I know about soulmates vs lovers is when in the spiderman comics Gwen Stacy dies and she is forever known as the soulmate of Peter Parker while his lover in his current life is Mary Jane.

Any info would help.

Thanks.