by Ivallen
Sorry little one, but it is abuse. It is perfectly easy to let your partner surrender control and dominate them without harming them or being sadistic - and consensual or not, it's an abusive way to treat a partner.
But that's perfectly in line with his character anyways; Yvain treats everyone he cares about so badly that it's difficult to read, at times - and the only emotion he appears to comprehend is anger. Hopefully that's simply deep flaws to change over time, rather than an indication of anyone's outlook towards life.