Dunno if Jack will ignore..He'll probably just shove his emotions down. He wont want her to see them. Thats just he way Jack is...which is a fatal flaw in his personality because Jack needs to basically tell her how much he loves her..but he wont..he does it with actions not words and this is why Liz is so damn late to catch on to the fact at the end of DMC it seems..the fact he was probably going to stay for her anyway