When is "Someday"?

Gilbert has been gone for more than a year.
"Come home someday," is what Anne told Gilbert before he left , but when exactly is "someday" ?
Anne begins to think that he might not come back at all , until she hears gossip about what he's been up to. Will he ever come back after that? Read to find out!

This fanfic is based upon "Anne with an E" a netflix show. So all the characters in this fanfic are based off the series.