Hey I'm 29 too but am only 2 1/2 weeks post op. before surgery I had this same problem- I had lost 75lbs and then got engaged- I gained it plus more back. It's so easy to let your guard down when you feel so comfortable in a relationship. I know how hard it is not to gain it back. Hopefully your boyfriend understands and will support you with this. You can do it! We are here to help- just remember to put yourself first rather than your relationship. That's hard I know! Keep us posted!!