The series never revealed what they each wished for on the bridge. I presume that Tsui Hoi's wish would be about staying with Jing Wei together forever and that could have been used by him to win her back. Tsui Hoi did finish the painting of "Sui Ngai Lum" (Little Irene) with I presume the supplies that Jing Wei bought for him, however, he never had the chance to give it to her. Finally, what about Tsui Hoi's phobia or disbelief in marriage? I find that was the biggest problem that caused them to split in the first place and was never brought up again! There was no official 'point of realization' for Tsui Hoi.
"Finding your girlfriend?" - Jing Wei
"Yes, I am." - Tsui Hoi
"How dare your girlfriend let someone as handsome as you look for her for so long! What do you think about me?" - Jing Wei
"You are very beautiful and understanding, but most importantly you appeared at the right time." - Tsui Hoi
(HUG)
"Actually, having you in my arms is like having the entire world. I'll never leave you again." - Tsui Hoi


All the ??? I had were more or less resolved indirectly in the ending rather than concrete...BUT this type of ending remained suspenseful up until the very last minute so there is appreciation to be discovered as I disected through this series. Just like The Seventh Day, New Breath of Love is a totally different series from what I've been accustomed to so it took me some time to discover the value in behind it. After disecting the ending, I've decided to bump it to 4/5 for the suspensful happy ending :)