My situation is similar. My friend and I have been together since February of this year. We had one date way back in high school (34 years ago) remained friendly but went our seperate ways. We lived two completely different lives. 2 1/2 years ago my husband succumbed to cancer and he divorced. Neither of us knew much about our lives until we met up in February of this year. He explained his bipolar,depression and adhd. We have developed a sensational friendship but I must admit that I am falling in love with him. He doesn't want a relationship and has asked if I could just be his friend and I said yes. It is difficult when he goes silent for a day or two, sometimes a full week. He recently had med changes and on top of it, this seasonal change. His new quiet time is aroung 6:30 or 7 p.m. which leaves me but a couple of hours after to work to visit with him and the weekends. He thinks its odd that I stick around. I am learning to deal with it because he is worth so much more than he his given credit for. There is a beautiful song by Jason Mraz and it was performed by Jason Mraz and Daryl Hall on Live at Daryl's house. Its a performance that touches my soul. If you check it out on youtube you might find that the words are so full of truth and desscribes at least for me, the way I feel and what I plan to be to my friend. He likes a different style of music but appreciated and understood me better when I sent him the video. I hope this helps..