Help me out..
So I love my girlfriend so much.. we been together for almost 11 months on febuary 10th.. & Im taking her to winter formal at my school. she lives with mee and My ex which is like my bestfriend gets really depressed because like im the only one thats really close to him.. He get really depressed when everr Im aroundd my girlfriend or even talk about her.. He understands im very happy but sometimes it seems like he dont want me happy.. and My girlfriend has even told me that I could give him a slow dance and when I told him that.. he said "oh shes gonna be your date im not going" I felt so hurt when he said that.. What can I do to show him I care about him and still want him to be my bestfriend and dont want to loose him..