 I have done everything I can to stop my girlfriend from eating junking food. I am looking forward to her trimming down
Trimming down on the junk food? 
on her weight. I tried to help her stop eating junk food by getting healthy alternatives and cooking for us and I also registered us with a gym
Oh okay I see. I understand, being healthy is important. I hope you are being sensitive to her feelings though, weight can be a touchy subject!