As a graduate student, I have recently supervised an undergraduate with their thesis work in co-operation with my own supervisor. I took care of the daily in-detail supervision, and my supervisor had the "grand overview" of the project and where it should lead to. This went on for almost 7 months.
Today, in roughly 3 hours, is the defense of the undergraduate. However, my supervisor hasn't asked me for my opinion on the thesis that was handed in. Actually, since it was handed in 2 weeks ago, I haven't been asked about it at all. The thesis will be evaluated by an external referee and the supervisor at a public defense today -- if it wasn't for the undergraduate student telling me, I wouldn't even know that the defense was today!
I find this weird, and to some extent unprofessional. As the main leader and supervisor, they should, in my opinion, discuss the thesis with me to hear my opinion and include me in this process. After all, I did help with the "brute work".
Part of me wants to let my supervisor know that I feel a little left out. On the other hand, I don't want to be difficult. What do you think I should do?