Charlie nodded when Callum said he wasn't leaving, well that was something at least; Charlie chose not to think about what Callum had been doing on the nights he had gone out - he was likely to get mad at some point in this conversation, no need to start early.
"I thought we could talk, you know since we haven't seen much of each other in the past few days." Maybe to some people it wasn't obvious that Charlie was being avoided, but after spending every day with the man, going as long as they had without even talking was definitely felt as far as Charlie was concerned.
He wasn't used to things being awkward with Callum, after that first initial talk he'd had with him out at Marlene's place, things had gone smoothly, the tension he felt now was unfamiliar.