That’s because mentally she’s comparing you with the other man (or men) she’s been dating behind your back. She acts as if she really likes you but then her actions show that she’s not really interested in taking things any further.
It’s possible that she really doesn’t want to commit so quickly, in which case she should have told you so outright, or she's waiting for another guy while hanging out with you to kill time, or she’s playing the field with other guys and trying to weigh her options.
What could any human being be doing in their bathrooms for so long everyday?
Whatever her reasons are, her not opening up to you is an immediate red flag, especially if you’ve already been out on a couple of dates already.They focus on having a great relationship with the people around them…