What does the writer convey when he says 'i was only fooling' what promotes him to make this remark?

Well, isn't that just a happy little phrase? When someone says "I was only fooling," they may be trying to lighten the mood or make a joke. It could be their way of playfully teasing or poking fun in a lighthearted manner. Remember, it's all about spreading joy and positivity in every little interaction we have.