A few questions in the way of exploration rather than accusations, feel free to answer or not answer however you're comfortable.

Could you elaborate on what led to these circumstances? Did you find the courseload too difficult? What percentage of your attention did you devote to your coursework? What was your background with the subjects before you went to college?

More general questions: What is your social situation like i.e. do you have friends you can talk to? Are you living by yourself or with roommates? Are there any academic advisers you can reach out to? Are there any mental health services at your college you would feel comfortable reaching out to for help?