It was love at first sight.

The first time Yossarian saw the chaplain he fell madly in love with him.

Maybe not love in a common sense. It was 1942, that would've been purely strange for a man to fall in love with a chaplain. But Yossarian loved the chaplain. Would he ever act on that? No, he probably wouldn't.

They'd been talking for a while, at first Yossarian thought he was just a sweet guy who'd offered him things while Yossarian was faking a liver injury. He wasn't actually hurt, just to get out of military duties during the war. Until Yossarian noticed the Chaplain's silver cross pin:

"You’re a chaplain," he exclaimed ecstatically, peering over closely from his hospital bed. "I didn’t know you were a chaplain."

"Why, yes," the chaplain answered. "Didn’t you know I was a chaplain?" The Chaplain was quiet, shy man who seemed way too afraid that Yossarian didn't like him. This just made Yossarian want to help him more terribly.

"Why, no. I didn’t know you were a chaplain." Yossarian stared at him with a big, fascinated grin. "I’ve never really seen a chaplain before."