Not what I seen but then I am not a specialist in psychology and body language like yourself.
Sometimes, you just have to accept you were beaten by a better team on the day. Whether it be tactical, personnel based, missing chances or making mistakes at the back, it happens. We are playing in a competition against high quality teams where a game can turn on one mistake. There are so many variables involved, some we are not aware of. Putting it down to some faux psychological analysis and body language is hardly the basis of a strong and cogent argument.
The coming from one goal down thing.....what are the context of those games? You use that as a sign of weakness but not the fact that we have been on lung busting winning runs. It's simply a selective use of stats without context. The kind of stuff that pundits like Merson et al come up with.