The 35-year-old star says there is a "certain shared life experience" among himself, his fellow actors and filmmakers which is a bit difficult for others to fully understand, reported Femalefirst.
"There's a certain shared life experience that is tough for someone else who's not in this industry to kind of wrap their head around.
"Letting someone go to work with someone for three months and they won't see them. It really, it certainly puts the relationship to the test," Evans says.