Clark is beginning to suspect he's been stood up again. He understands that Bruce has baggage, namely an annoying child to look after, but a call isn't too much to ask. They hardly get any time alone because Dick can be kind of a dick but he does make Bruce happy. From what Alfred says, the happiness is new.
He checks his phone again in case there's a message but there isn't. He's about to leave when Bruce arrives.
"Nice of you to show up."
"Sorry, Dick wasn't feeling well."
"Yeah right," he mutters.
"I'll make it up to you."