Personally, I don't really like them as a couple, they are just too different, and don't suite each other at all (in my opinion). I would put them もっと見る like friends. But if Ashley is happy with him, then I am happy for her too!
I 愛 them together!!!! Those of あなた who say their personalities don't match, don't have the right to say that because they are not their フレンズ and therefore wouldn't know how their personalities would go together. Also, just because あなた hate him, doesn't mean that Ashley would be a good girlfriend.