What does "go strong" imply here?
Native speaker’s answer
Rebecca
When used in reference to people, to be "going strong" means to be doing well, with no issues. The speaker has used this expression to indicate that Izzy and Chop are doing well in their relationship, i.e. going strong. Ex: How're you and your boyfriend doing? Still going strong? Ex: I'm one hour into my intense workout and still going strong.