Miscommunication turned into deafening silent treatment

Hi all,

I have found such help and support from users on this forum and figured that I'd give it a try this time around.

5 days ago, I had a text message based conversation with a close friend. He and I have been very close over several years and in the past few months, I have become more emotionally attached. It was an undefined relationship and one that is long distance (he's in another state).

During this conversation he was opening up to me and saying that he's losing his sex drive and worried about ever having an emotional connetion with anyone. He further said that he didn't think we could talk about this subject with me because he needs to be cautious with me since I have feelings for him.

I had replied that yes it's true and that I wasn't sure what he wanted from me as it's an undefined relationship. I also suggested that it's almost as if we try out the dating thing or scale back our relationship and that if we weren't careful with the conversation and think this through he might essentially lose me. Which he questioned if that meant I wouldn't talk to him. And I told him that i would need to. He then ended the converstaion with "i see, so basically you just gave me an ultimatum?" I replied that I didn't intend to demand anything, but I need to gain emotional space, we haven't talked about what you wanted?

That's where we stand. He is supposed to fly in next weekend so that we can attend a wedding-- I've made plans with his friends and family on our behalf...even have some logistical things at play as well.

I have e-mailed and explained that I'm not sure what has happened since our conversation and that I was sorry if he percieved it as an ultimatum and that was not my intent and have asked for some feedback on if I needed to cancel travel/hotel reservations. I've called, only to be ignored. I've sent an apology text as well.

The silence is deafening and I'm at the point where my "love" for him has dissapated, it's turned into just exhaustion at trying. Any suggestions and insight?