What are some effective ways to remind yourself of the negative aspects of a past relationship when you're feeling nostalgic?

I’m 16 and I’m always thinking about being married and my husband and how he will “heal” me and make me feel safe and comforted and that’s when I’ll feel like that. How do I think that about God instead because I know only God can do that?
What makes INFPs so uncomfortable about sharing their opinions on new topics, and how can you encourage them to open up?