wife told me to go to the Berkeley meetup alone last saturday. it was weird

Wife told me 'go alone, see how it feels, I trust you'. Last Saturday. The Berkeley meetup at that bar off Telegraph that does the monthly thing. I went. Wore the blue shirt she likes. Drove there. [M42] me, software, [F40] her, hospital admin, married 11 years two kids, lifestyle four years strictly together until now. I stood at the bar for 40 minutes nursing a Negroni and talked to nobody. Three couples I've met before said hi and that was nice but then they went off to their thing. A single woman came up to me, friendly, mid 30s, I didn't know her, she asked if I was 'with someone tonight' and I said no my wife sent me, and her face did something I can't describe. Not bad. Not good. Just something. She wished me a good night and left. I drove home at 11 and ate cereal in the car in the driveway because I didn't want to go inside yet. Frosted Mini-Wheats. Out of the box. Wife was awake and asked how it was and I said fine, and she said good, and then she just rolled over. So. Did the solo thing work. Idk. It felt like I was wearing someone else's jacket all night. Anyone done this and had it click on the second or third try? Or is this a sign?