Bel watched as Harp yelled about having to go to the bathroom, merely watching him run up the stairs. His nostril's flared as he sucks in a sharp breath, slowly exhaling. He had scared him, that much was obvious. But what did the cupid expect? Had that angel not been threatening them both? Or had he been sorely mistaken? He didn't think so. Maybe he had used a bit to much power, but he had bolted in with full intent on killing her... at least at first. 

"Don't run..." Bel's voice rumbles out, echoing somewhat. "It is alright to be afraid." As he says this though, his form would slowly be returning back to normal. The black cracks in his skin receding, leaving rather red marks in their place. His eyes slowly returning to their bright emerald green, no traces of blackness or blood red anywhere. Even his claws were returning to normal. The only thing that did not fully change back was his hair, which by now all but the tips were black. It really didn't seem fitting for his eyes. 

Bel was still very much under Harp's spell, the demon had no killing intent towards the angel still. Even as he tried to escape... With a rough shake of his head, Bel swiftly pushes off of the stair he was on, skipping several others on his way upwards after Harp. With one last good leap, he'd promptly attempt to tackle the angel as carefully as possible, letting out a low whine. "Please. Don't leave." His voice rang with utter honesty, he really did not want Harp to leave, not yet. It felt too soon, and Bel was just now starting to have some fun. He had a feeling they would send more angels again at some point, possibly soon. Or maybe they would heed his warning... He could only hope. And maybe, just maybe, after Bel was free of his magic, he could kill Harp. But who knew how long cupid's arrow would last. He had never actually been hit with one before now, or any spell like it.