No, he definitely isn't and it's likely something that will concern him or preoccupy him in the future, but this with her isn't something he's going to regret. He doesn't want out of this simply because of the age gap between them. He simply wants to make sure he's doing the right thing by her. Lydia deserves to have everything she wants in life. He won't be the reason she doesn't.

He moans softly as her fingernails scratch against his scalp and she moves closer. Any and all age gap is forgotten. She makes him feel alive and hopeful, like he has a life worth living even in this place.

He grins as well, pressing a kiss to the tip of her nose before resting his forehead back against hers. "You don't have to thank me for that. I'm happy to be that because you've become the part of my life that I like the most."