The relationship that teaches you about yourself
You love them. You also haven't slept well in months. The two facts sit next to each other and neither cancels the other out. Loving an avoidant partner as an anxiously attached person is one of the most common — and most quietly painful — dynamics on earth.
What you're actually up against
This isn't a communication problem you can fix with better wording. It's two attachment systems that activate each other's worst fears just by being themselves. Your reach triggers their need for space. Their space triggers your fear of being left. Neither of you is doing anything wrong.