My Girlfriend Doesn’t Make up For Me But Discovered She Does When Visiting Another Guy

She used to be friends with this guy apparently more than a year ago and they haven’t talk or seen each other. But he reached out and started texting her for about a week. My girlfriend called in at work so she could meet him and she put on a lot of makeup she never wears makeup around me even when we go on a date. Should I be worried about this or am I overthinking it?