Ok, here it is.......
You and this lady are stranded on this island (or remote world) with NO chance of rescue. You had a relationship in the old world with a lady and all you can do is agonize over how much you miss her, need her, can't live without her. Logically, you KNOW that you can NEVER get back to her, she may even be dead.
Now the lady stranded with you has loved you since you were a child. She's lived in your neighborhood, passed by your house daily going to school, has had classes with you, ached in her heart as you poured out your affections to others, and yet, steadfastly, she has loved you. The little things she did to express her feeling toward you were ignored or mis-interpreted.
Oh, you tried not to hurt her feelings over the years, but you really couldn't care less about her. Even when she was voted Most Friendly and Miss Congeniality and Queen at the school prom; and when lots of your friends simply adored her, you could not see what they saw in her.
And now, here you are, stuck with her on this isle. She hopes that NOW, as she manages to find food, prepare a shelter and extends friendship to you, that, FINALLY, you two can get together and live in love and peace.
But, all you do is pine for someone else.