He doesn’t believe that fucking the ass is considered infidelity
She has her boyfriend and is in love with him. What she loves most is that he gives her space—whatever that means. She can come and go freely and that makes her do the things that any young girl her age does. However, that doesn’t mean she goes around riding the horns. Or not technically. Because a moral vacuum prevents her from being considered unfaithful. Because she doesn’t believe that fucking in the ass is considered infidelity. Much less give a blowjob. As long as a male does not penetrate her pussy, she can enjoy sex with others.