Dating a guy for 1 year, he gets incarcerated for 1 year on petty charge, stay or leave?

Me and my boyfriend have been together for over a year, we did everything together. We have known each other for over five years and always came back to each other. Our relationship is stable, we really understand each other, no major issues at all. We are both 19, he is now incarcerated looking at one year give or take. I adore him, but sometimes people tell me I should leave. His family says I shouldn't and support me so much. When I think about the how people tell me to leave I get upset because I love him, and I don't want to throw it away. What would you do?