雅思口语P2 Describe a time that someone didn't tell you the whole truth about something (文字版）

Mention about the topic, a time that a good friend of mine didn't let me know something comes to my mind. That was a couple of years ago when I was a freshman, my close friends, also he is my roommate, fell in love with another girl. But interestingly, he didn't let me know it. In the meanwhile, some of the other roommates had got no idea about this at all. The point was that he was a very shy boy at that time. More importantly, all of my roommates got to know his girl friend before. Cuz we used to study in the same library, and we could meet each other almost every week. This is why my good friend didn't tell me the truth at the beginning I might say. Above all, he got married with that girl he loves, and till now, they had a new born baby apparently. I can say he is the one that I look up to. That is it.