Oliver hadn't meant to worry anyone, he'd run into Pomfrey one afternoon after accidentally hexing himself and seeing what a hard time she was having down there he'd stayed. One day turned to two and next thing he knew a month had passed.
He knew very well about the fire, he'd been down there helping those who were burned. It was funny though, in that atmosphere, in that situation, people didn't even seem to recognize him. Granted most were sick with flu, panicking over no magic, or in pain from burns and not really in the noticing who was taking care of them kind of mood.
So far he hadn't gotten the flu himself despite being in such close contact and he figured it was because he was doing good deeds. Life didn't punish you for doing good... right?
But now he'd had enough. A month and several days of continuous nursemaiding had made him a bit mad and he reluctantly left Pomfrey's side to rejoin his friends for awhile... or maybe for good? He wasn't really cut out for being a nurse. He'd rather be in the front lines, but it had been a good experience. One he'd treasure and one he didn't want to share.
He popped into Angelina's office and was tackled by her screaming body and he had to laugh, how could he not? "I haven't been gone that long!" He wrapped his arms around her easily, if he had known she was crying he wouldn't have laughed.
"Ah man, sorry, I was kind of busy and when I realized so much time had passed it was too late to send word anyway and I was too tied up to grab a quill. But it was amazing. What have you been doing?" He patted her back.