I hope they do, but I do think he was being a bit insensitive in today's e4 because he just came barging in there wondering whether they were going to get back together.
It's not a petty argument though - he's done an unforgivable thing. When someone you care about tells you something like that you really don't doubt them. + he was horrible to her about it aswell even when he saw how upset she was. It'd be a really silly ending if they got back together.