LW4: I started feeling this way with my ex when I could subconsciously tell that he wasn't that into me anymore and a break-up was imminent. Me acting crazy jealous only sped things along. It doesn't sound like this is the case with you and your guy, so you should probably get some outside help to deal with your insecurity before it ruins your relationship. He sounds pretty great, so I think it would be worth it.
Amazing post, as always. And my god, the clip of her rolling down her glove is OBSCENE. How does she do that!?
LW2: I know this is a little late but I really wanted to relate my own experience. I moved home from NYC a few months ago to help ease my parents' pain after my sister's suicide. It was a truly life-shattering event and I couldn't possibly imagine making any other choice. That being said, now that some time has passed I feel that it's time for me to go back to my own life for the sake of my own mental health. The answer is never truly clear, and not very many people understand the tremendous guilt and sacrifice involved in such a decision. I know that for me, sacrificing a few months of my youth to take care of the people who took care of me for 20-something years was the right decision. Do what feels right to you, but I would recommend a time limit if you do choose to move home. And only do it if you truly believe that you will be a help, don't do it out of guilt. Believe me, I know how you feel. And good luck.