Sounds good to me! Foggy definitely sees Dean in a similar way as someone who made a difference in his life since he learned a lot from their confusing experience. There are no hard feelings. Dean might still have his troubles but Foggy wouldn't hesitate to tell others that he's one of his best friends.
One last question: Did they ever tell Nattie about their little fling or Dean's other problems?
Gotta say I really like this backstory. I look forward to their interactions in the game!