Being forced to choose between two things that one wants or feels compelled to do in equal measure. No child should be torn between loving one parent or the other like that. Her offer left me feeling torn between my commitments to my family and my desire to go out and see the world.
To put someone in the position of having to choose between some equally desirable or undesirable options or loyalties. Used chiefly in the passive: The soldier was torn between staying on duty or going home.