Sigh. Why would he display this behavior?

So I previously asked you guys why my friend wouldn’t let go. He did, or so it seemed. After almost a month of no communication, he knocked on my door to invite me to the movies. He acts like absolutely nothing happened. He said his phone was dead and he has been working every day for three weeks. Do I believe him? I feel like he makes up a different set of stories for me (I’ve caught him at this before) just to keep me close. What is he thinking? Is he thinking, or is he just acting? What is the reason for this behavior?