Education & Career

Would it be weird to send this to my professor?

I have this young professor maybe mid 30s who’s very personable. He was a very good teacher and I took a course with him last semester that changed my life lol. It was probably the best course I’ve ever taken and I’m a senior.
It was a small class so we would easily all participate in discussions. I am shy but I challenged myself in that class and spoke out many times.
Earlier on in the year he was taking attendance and accidentally marked me as absent when I was there then spent the whole class apologizing to me. Even after class he stopped me while I was leaving and was like “Katy I’m so sorry again”
One class I wasn’t speaking out as much because I didn’t understand the novel were reading and afterwards, he asked to speak with me. We were alone and he asked what was wrong and wanted to make sure everything was ok with me and how was I feeling because I wasn’t speaking out in class.
There are some classmates who never say anything in class and participate, which he said he was cool with. But he told me he really liked when I speak up because I make good points and he expects me to. He also told me if I ever needed anything to come to him or his office hours.
I signed up for another one of his classes this semester and went on the first day and did not like it lol. I still like him as a professor but I don’t think I’ll be comfortable in that class because there are lots of people and they’re all loud and know each other.
I sent him an email letting him know I dropped the course and that maybe I could have him again next semester. He emailed back and said he would love to have me in one of his classes in the future if circumstances allow and he really liked the nice note I sent. And he wished me a good semester
Should I answer back and say thank you or just leave his message as a final email? I’m so awkward when it comes to these things lol that’s why I’m asking!
Would it be weird to send this to my professor?
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