Forte was starting to be worried at Depth Charge's reaction - he was more scared than happy to see Forte alive. Three days didn't seem like much, but it was a lifetime in this place (well, apparently Forte's lifetime was about five days. But.)

"I'm here. I'm... recovering. If I weren't real I probably wouldn't hurt so much. But, yeah, somehow I'm alive. It must not have been as bad as it looked."

Sure, it might seem a little suspicious for him to suddenly reappear after several days. But he wasn't going to question it now.