I once lost contact with my online dom, I was really upset for a long time, right until she came back. I thought she might be mad, or that something bad had happened to her, but in the end it turned out that she just had some real-life obligations she had to take care of. It sounds like you found a kind master, so I don't think he would leave without a word. Sudden loss of contact is a possibility with online relationships, anything as small as a computer virus or an unpaid bill can cut you off completely. You'll probably keep feeling bad until you see him again, but I don't think it could be your fault, so just keep that in mind and await his return~! ^^ I hope this helped <3