Hmm .. as for why I felt I would get waitlisted at Col ..
Well, I received my interview call very quickly (Compared to others). So when I saw that after the interview, my status was again changed quickly (Within a week of interview,) I kinda knew that Col was going just too quick on my application. As if they know exactly what to do with my application. If Col wanted to admit or deny a student, it would have spent more time on the application. I feel that my application was supposed to go to "waitlist" just as it was reviewed.
Anyway, putting my "optimism cap" on, if Col had accepted me, then I would have a tiny regret of falling for my first love and not evaluating schools based on fit. Now Col has kinda said to me, "Hey, give your best shot at other schools, then see where you get selected .. and then make an informed decision. Don't just sign up for Col and not try out other schools."
Optimism cap off. Darn, if I had an admit, I could start working on my future goals. Now I've gotta stay in the admission race for many more months