One of my favourite quotes from the film is from Giovanni, Gilbert's Italian teacher who falls in love with her friend. On Thanksgiving Day he says:
"I am thankful for fear, because for the first time in my life, I am fearful that the person sitting next to me may be the one who wants to leave."
Though at times I find myself hating that I have to feel this way, fear for me, is an indicator. Like Giovanni, it's the first time I have felt it in a relationship and it lets me know that, this time, I love the person as much as they love me.