He wanted to say a lot of things in that moment, things that involved protests about how she was his mother and because of that fact, he couldn't ignore her; of how he was disappointed when she didn't show up to graduation when he'd been presented with captaincy of the Enterprise; how he didn't understand for the longest time that mom wasn't coming back; how he'd hoped that she would show him that she was someone different, that his father's death had changed her in a way that was irreversible and with him here, she would be the mother he'd always needed as a kid... Instead, however, he took a long gulp of his drink and made a face of distaste -- towards the woman in question, not the beer.