I laughed a little bit at the multi-language "I love you", because "anh" in Vietnamese is used for male, who is older than you.
But since it's just "mentioned" I think it's still understandable.
You know, these characters are presumably Japanese, so shouldn't she at least know what "aishiteru" means? Alright, well, anyway, it was very cute and very funny just like all of mk's stuff.