How do I feel

So I trust my boyfriend immensely, but tonight he didn’t reply to me for a solid hour and that’s okay cause i don’t expect him to always reply to me or talk to me, but i saw in a snap he sent me that he was in his car and it was around 10:30pm which is unusual cause his curfew is 11 so he’s never out past 10, i asked him where he was (cause i was just curious) and he said ‘oh i’m just hanging with (let’s call her alice) alice.’ who is a girl he always talks to on snap. he said he went and picked her up and took her for a drive and they also went and got food because she was a bit sad (which was nice of him to be a good friend to her) but it kinda upset me that he didn’t tell me he was going out driving at 10:30 at night with a girl he always talks to.

i just wanted to know if you girls think i’m overreacting or not or how you would feel in this situation because i have very mixed emotions