Dorms at WashU in St. Louis: double vs. triple?

Choosing housing at WashU and contemplating the benefits of having a double over a triple.

My dad thinks I should choose a (traditional) triple because #1 it would allow me to meet more people and #2 its cheaper. As an extreme cheapskate, I’m all for the least expensive housing option.

However, I am worried that I could end up being the odd one out/left out if my other two roommates really hit it off and I don’t with either of them. I am also worried that they might end up hating me (I’m a girl btw) and then teaming up against me.

Is this something I should be REALLY concerned about?