Chris Evans and Robert Downey Jr. just had a Marvel-lous Twitter exchange
3:09am PDT - March 14th, 2019 chris evans - MashableTwitter undeniably has a whole bunch of uses. But helping us fill the gaping void between Avengers movies by providing a space for our favourite superheroes to cheerfully tweet at each other is surely one of its finest achievement. SEE ALSO: Chris Evans being…