Actually, you have it backwards. After May's father talked to Barta, and Barta belatedly made the effort to find out what was on the players' minds, Fuller was one of those who did not indicate any dissatisfaction or intent to consider transferring out.
On the record, Fuller's only public comments have been that he likes being a student at Iowa, likes hims teammates, liked his coach & regretted that he was fired, was not planning on leaving. You can assume that he was dissembling and falsely stating his true feelings for whatever reason, or you assume that he has since changed his mind, or figure that the chaos of the past several weeks has him reconsidering and he is the straight arrow kind of kid he has always seemed to be and isn't going to comment until he decides what he is going to do.