You still remember your ex-boyfriend's birthday, which shows that you are a person who values friendship. Since the relationship has returned to the position of good friends, you can also generously give him a gift on his birthday.
1. I think you can give some gifts about food, and it's better not to be too tacky. This handmade chocolate is very suitable as a birthday gift. You can write your blessings to him on the chocolate, which can be birthday blessings. Such a gift is very suitable for giving.
2. For the birthday of a boy in this relationship, you can give him a practical gift. A pure cowhide handmade wallet is very good. Now there are many handmade cowhide wallets on the Internet that have engraving functions. You can engrave your blessings to him on them. Isn't such a gift very personalized?
Since the relationship between the two has returned to the position of good friends, why not give him a book? Nowadays, people are under great pressure in life and work. Isn't it meaningful to give him an inspirational book? You can write your most sincere birthday wishes for him on the title page of the book.