Most Helpful Guy
He might be trying to get your attention, he might be trying to make you feel like you're missing out, he might be trying to get someone else's attention, who knows. The question is, has he tried to apologise for what he said? If not then how has anything changed? If you took a stand on something then it must have been important to you. If you fold on that without him apologising or understanding where he went wrong then you are accepting shitty behaviour and can expect it to happen again in the future.
Most Helpful Girl
He's probably trying to look/act more impressive to impress the next girl on his docket.