I heard the students are happier when I'm not there. Should I not take it personally?

I got fired from my job yesterday for being late so many times because of the bus. I tried to explain but my boss wouldn't listen.. Anyways I got uninvited to the field trip since I got fired. I saw my ex co-worker earlier today and she didn't seemed happy to see me or looked annoyed. I asked her how did the students take it when I will no longer work there. She said, "You really want the truth? Ok you asked for it. The truth is when we told the students you no longer wotk there, some didn't care but most were happy. I mean very happy. Sorry to sound brutally blunt but kids are a lot happier when you're not around. It's the truth."
I was shocked. I was such kind and nice teacher. How can this be? Then she said, "Well this job isn't for you. You are too soft and baby the students, you let children get away with their wrong doings, you're very annoying and always mocking kids for their wrong doings. Also you always butt into peoples conversations and we're not even talking to you. Its better for you to find another job. Well bye."
How can the students be happier when I'm gone? That hurts so bad. I tired so hard to get most students to like me but that always failed.