Most Helpful Guy
I've been down that road. It was for five years.
I think about where we've been, where we're going, and where I'd like us to go. It's at a point where we have so much complicated history that I can't even fully articulate my thoughts.
It's over now, and I'm crushed. So damn it all.
Most Helpful Girl
He can think about almost anything ranging from their history together (either as friends or dating) to anything else really. There's no specific thing one guy can say that another guy thinks about. There are general ideas they tend to think about but that's not for certain. My bros tell me a lot about what they think about when they like a girl and all of them think completely different things. So there's no answer one guy can say for sure unless you state how he acts, which would help determine, but not definitely.