Life is like that, friends become enemies and enemies become friends.
You haven’t done anything good to a person and they have started doing good to you; friends or enemies, it does not matter.
Your life runs by different laws of karma. That is why, put all your friends and enemies in one basket, because a ten-year friendship can turn into enmity and an enemy can become a great friend to you at any time. It all depends on you and your karma.
- Gurudev Sri Sri Ravi Shankar