I wouldn't think too much on it. What guys say tend to be pretty straight forward without much hidden meanings. I'm not saying that this is always the case, but it usually is. So don't worry about this too much. It's just a waste of energy and trust me when I say this. I've been going through very similar situations, so it's best not to think too much about it.
So in this case, I'd say that he was simply answering that girl's question. I mean you guys do talk, right? So he was just saying that you guys do talk, but since he was mad at you, he was a little reluctant to come up with a straight and strong "yes I do!", and instead came up with a more weak "something like that".