Im not beating you I hope. FWIW I think your friends' reaction is totally normal and I think Alex's is too. It depends on the individual's personality and how they deal with trauma imo and the sexual orientation is irrelevant.
About the weirdness of this case (where to start) have we, as a group, concluded that the friend called HER or SHE called the friend when Morgan was allegedly outside? Assuming she was indeed there, it seems to me that if Morgan were outside on purpose she would not have initiated the call. That is not solid; and doesn't prove anything; it's just how I feel. Iow, if she wandered out by accident or otherwise got outside not-deliberately, the first thing she'd do is initiate the call to the friends "OMG I'm outside; I cant get back in" etc However, imo, ,if she were out there for a reason, she would be less in a mad rush to call the friends.. (I think that anyway)
Also, I cant get behind her being emabarrassed about anything mildly embarrasing with the roommate like feeling sick, dizzy, or tripping, falling, bloody face..... If they've been friends that long and live together, they've seen plenty of way more embarrassing things than any of those incidents. Whatever it was would have to be a real whopper doozy imo for her to be significantly embarrassed in front of the roommate.
2 cents
moo.