Should I send the request, will he be angry?

I just graduated from high school and whole 1 year I had a crush on my teacher and he realized it too since the beginning. He kept being nice, when I make eye contact with him he makes it too and he is really good man, religious, doesn't have any bad things about personality or something and he is very dignified. Whatever, I always wanted to send a request on instagram but I was waiting for gradution day, should I do it? I'm afraid of being embarrassed and his friend knows it too, his friend is a math teacher in our school and they are very close friends, math teacher also realizes when I look at my teacher, I don't know what to do
Should I send the request, will he be angry?
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