OK. I get it...I think! It is because the first clause expresses "emotion". Therefore it seems to be more a function of formality, a rule, not a matter of doubt. Because, I could be in fact happy that you travelled the world. Right? Or, is there another way to convey that "I am pleased that..." as fact and not use the subjunctive?
I appologize if I appear to be running in circles, and chasing my tail! I greatly appreciate your imput!