A girl having had a crush on a guy since high school. He never realizes it and eventually she marries a gentleman. Since they were friends somewhat, the crush is invited to the wedding on a whim. When he shows up her heart starts to flutter and she questions everything, but the marriage goes on.
Just over a year later, the crush has now been moving around the country and the girl is happily married. He calls her out of the blue, to tell her that he will be in town and if she wanted to have a few drinks to catch up.
That little opening begins a love triangle that shows even when you have an amazing person beside you, when your heart wants a specific thing, you shouldn't try to stop it.
I know, soap opera like.