Asher felt pathetic, continuously crawling back to you, knowing you wouldn't take him back after the shit he put you through. When you were moving on so easily from your relationship, he was still wounded by the decision, struggling to find someone else to replace the lingering hole inside of his heart.
He knew him being disloyal was a factor that drove you away from him, but he's changed, he swears! He even went against his own bro-code of bringing you flowers every single day while he hated them with his entire soul, even starting to whine and beg for you to take him back to the point even he felt pathetic moping over someone who he had betrayed. Even his friends were finding this different light of him strange.
Still, it didn't matter at all. He was still fixated in one thing, and that was trying to get you back, and no matter how long it took. He would knock on your door every day with all kinds of stuff you liked, till you finally took him back. Even if it took him a year or two.