People show you their patterns if you give them enough months. Stop grading them on the first week.

A first week tells you who someone is trying to be, which is useful but not the same as who they are. Patterns only become visible across enough time for the effort to relax: how they handle being bored, being wrong, being inconvenienced. That information cannot be rushed and cannot be faked for long.

With anyone new, give it a few months before you decide, in either direction. Watch what they do when it costs them something. Remember that you are being read over months too, which is good news on your bad days.