i dont know how to put in to words that i understand where you are coming from. i live a very isolated life as well and when someone says/does something letting me know that i am meaningful to them, it really fills me with so much gratitude. i feel so non-existant most of the time and it is such a source of acknowledgement to receive that feedback that they noticed me and i mean something positive to someone's life. it is an awesome feeling. take care.