There are still people who feel the state should not have seceded from Virginia. West Virginians did vote to separate from Virginia, but many of the citizens were away fighting for the Confederacy at the time. A similar number men of from there were fighting for the Union, but since that part of Virginia was Union-occupied, many members of the latter group were able to return to their homes to vote, while Confederate soldiers could not cross Union lines to do so.
The area that became West Virginia was very much split in sympathies during the war. This was also true in some counties that stayed in Virginia, as well as in other border states. In many cases families were divided in loyalties. It was a bitter time.
Anyway, West Virginia is a beautiful state and I recommend visiting it.