What would you reply to this?

lol she made sure to specify her stress relief was not anything sexual so try to build up the vibe more. unless you wanted to play it more risky say something like "ah, you left out a massage" but again i'm not sure if this would be too obvious/sexual. depends on the situation

I wouldn’t have said that thing about hanging out with a chick from the app, but to that I’d say “sounds nice, all you’re missing is a handsome (insert your race here) guy ;)”

"I don't have a dog but I can make it up with double the wine"