There are guys who act like that, that is for sure. I would not use categories "normal" and "not normal" to classify him. Maybe you could rather say "common" and "uncommon". What he does might be common for younger guys for example, those who do not want to settle down, etc., who are looking for fun only. But the question is, what behavior do you accept? Because, he most probably won't change. And if you do not accept his terms, are you willing to walk away?