Looking at it, it doesn't seem like he loves her since he never really interacted with her (e.g. never spent time with her, doesn't know what she likes or how she thinks). He only freaks out now that he realizes that she can leave him. He always thought no matter what happens, she will end up with him so he gave no effort whatsoever to get to know her or spend time with her. He only reacted after being TOLD that he's losing her from other people so it's more of due to reputation because who has ever been left by their fiancee as a man in their society? And because of him losing something (something not someone because he doesn't even know her enough to lose her as a person) he's been promised due to his own neglect and actions.
Looking at it, it doesn't seem like he loves her since he never really interacted with her (e.g. never spent time with her, doesn't know what she likes or how she thinks). He only freaks out now that he realizes that she can leave him. He always thought no matter what happens, she will end up with him so he gave no effort whatsoever to get to know her or spend time with her. He only reacted after being TOLD that he's losing her from other people so it's more of due to reputation because who has ever been left by their fiancee as a man in their society? And because of him losing something (something not someone because he doesn't even know her enough to lose her as a person) he's been promised due to his own neglect and actions.