What’s something you thought was a “red flag” in dating when you were younger, but now realize might actually be a sign of a healthy relationship?

For me, I think we sometimes confuse intensity with connection. Constant texting feels like interest. Jealousy can feel like someone cares. Wanting to spend every free moment together feels romantic.
Then you get older and suddenly someone having their own life, giving you space, communicating calmly instead of dramatically, and not needing constant reassurance starts looking a lot more attractive.
Curious whether anyone else has had a dating “red flag” completely flip into a green flag with age and experience?