你好!Chai,
Nice to meet you !
Here in this sentence "待"means:stay. It's too boring to continue stay here .
This character has 2 tones,different tone has different meaning :
1.dài
待 -----wait Eg:为什么不待我回来再说?/ 这件事有待商量。
2.dāi
待 stay Eg:你都待了这么久了,怎么还不走?
Hope that's helpful for you !