You come to mind morning lay, nightly, and no only, I wish I could see you this minute or soonly. So you're probably right if you're thinking it seems like I'm taking this missing - you thing to extremes!
When people make you feel unwanted, don't leave to make them feel sad or guilty, they won't. Leave because you no longer have a reason to stay. Sometimes you have to be strong for yourself. What's meant to be will end up good and what's not - won't.