Why does the ultimate Baddie like Dane gotta be paired up with this pos

What are u talking about, Dane isn't a Mary Sue, he's literally a walking red flag who doesn't care abt love or ppl around him, he js cares for his cat. He's only a firefighter bc it pays his bills well. Also Grayson was an absolute green flag to him, when he realizes he loved Dane. He was never toxic to Dane.