I struggle to keep feelings while not physically close to my partners.

Yeah I feel I have a version of this whatever it is. Maybe not to the same extent you are describing, I definitely keep in touch throughout trips without needing reminders, like sending pics of interesting things I see etc, but the feeling is definitely altered. I don't think I have ever truly missed anyone while physically apart in some longing way. I suppose I just focus on what is going on around me. Then the moment we are reunited all the feelings come flooding back. Like you it's not about attraction to others or cheating or anything, more like pressing a pause on these kinds of feelings completely, and I had several long term loving committed relationships and it's always been like that.

/r/relationships Thread