Bhutan?? What you are smoking??
Nepal has created issue recently after getting orders from China. Look at the mess they have created in their own country. Heck, even we have settled our border disputes with Bangladesh peacefully. For India BD and Manmyar are equal friends, can't ditch one for another..
Meanwhile can you say that China has cordial relations with Japan, Taiwan, Vietnam, Bhutan, Philippines, Malaysia, Brunei, India, Mongolia, Hong-Kong, Australia, UK, US, EU??? More than half of nations what I have mentioned earlier have territorial issues with China. Lastly I heard and seen Nepalese government document claiming that China had gobbled 64 hectares of Nepalese land.