My daughter is ~2 months shy of being 21. Her boyfriend is 46. For reference, I’m 45. She introduced him to my wife and me about half a year ago. Since then I’ve had to bond with him in order to maintain the great relationship I have with my daughter and also keep an eye out for her. But it’s tough, uncomfortable. It is what it is. As we say here “să fie ea sănătoasă” - as long as she’s healthy (health is the most important thing).
They have a lot of hobbies in common. They’re both very adventurous. Seeing them interact with each other, they talk about anything and everything. He’s very… youthful. I don’t enjoy bonding with him because I have a very laidback and calm personality, while he’s very rowdy and fiery. My daughter bickers with him a lot because of his personality, playfully, of course…
Well, at least it sounds like it’s not a “just for the hell of it” relationship if nothing else. Hopefully, it’s applicable at both ends.