My guy friend is ignoring my texts and emails! [I Need Advice]

Ever since he started his summer class online, he has been on video chat less. I mean I understand education goes first but he can at least take a break. He hasn’t been answering any of my emails or texts? I mean he did text back and said he has a LOT of homework due this Friday like 6 assignments! That’s a lot for a five week course.
I emailed him an hour ago if he wants to chat with us on zoom tonight.