Don't take it so personally. (너무 기분 나쁘게 듣지마)
You know how people are on social media. (SNS에서 사람들이 어떤지 알잖아)
You know how people are around this time of (the) year.
People can get really careless with their words when they know they never have to meet you in person. (사람들이 실제로 만날 일이 없다는 이유로 함부로 할 때도 있다)
I'm sorry. I think I was a little careless with my words.
Don't let it get to you. (거기에 흔들리지마)