I love my boyfriend very much.. but because of some reason he brokup with me.. his birthday is coming & I want to give him a gift.. which reminds him that he lost something... :(

It seems that you have not moved on, and gifting him at this stage will only complicate things for you.

A gift will not remind him of what he lost, only that you miss him. If you want him to miss you, ignore him forever. Why would you reward his dumping you? Spend the money on yourself, you will feel better.

I agree with Tal and BK -- a gift will not remind him of what he lost, but will give him a chuckle that you are still pining for him. Giving him a gift will only keep your wheels spinning in the ditch.

He's out of your life. Move forward into a bright future.