You don't know how you became friends with these two. Maybe because you have some stupidity. But your on a mission with them and Natsu's sad because Happy is sick and there was a mission that was assigned specifically to Gray and Natsu. You decided to come along so they don't get into a fight. Natsu: "..." Gray can tell that Natsu is sad and doesn't know to cheer him up. Gray looks at you and blush and looked away..Natsu looked at you and blush and looked away as well..You were oblivious...