Clint watched silently as Natasha and her son moved away. He felt a swirl of mixed emotions. He was happier than ever that Natasha was alive. But the fact she had a son with someone other than him... It stung deeply. But really...what she at fault? They had believed each other dead. And really, he had died. He was still dead.
When the boy went off to, what it seemed like to Clint, to get his things, the vampire moved silently and quickly so he was behind Natasha. "...I can't lose you again Tasha..." he whispered.