In international arena, countries do things based on their own interests instead of trust. Every one knows. Indians are not angels and know these too. If India are bullied or screwed up things, it is its own weakness and stupidness. Do not blame others.
Wolves want to eat sheep. It's Wolf's nature. Sheeps please do not whine. If you can, please become a wolf.
The Chinese have been masters in obfuscation. As pointed out by the author, there is just a change in few words in all the joint statements and vision agreements but there is no commitment to a proper future course of action. China is just biding its time to make an eventual claim on Arunachal Pradesh and we have to be extremely cautious and not be laid back about their subversive intentions.