Don't get caught up in idol gossip.
The only way to avoid criticism is to do nothing, say nothing and be nothing. But that is no way to live your life. We all need to accept feedback from others; the secret is knowing which feedback is helpful and which is unhelpful. Once you can do that, you can use feedback constructively to move yourself forward and make positive changes.
A weakened passion can be revitalised. Feed your passion and watch it grow and strengthen.