Tell you something, most of us tend to behave weird after sometime being here...dont know why but that is how it is. And guess no one would accept that, I didnt until my friends and family back home told me so. So sometimes it is not the other person but we ourselves who arent behaving normal or are overreacting to an otherwise normal situation. Taking break more frequently certainly helps...since I started visiting the departure lounge atleast once every two months I am considered normal now at home....:) So yeah hopefully once you take that vacation you should be ok for a while.