My ex and i broke up almost 1.5 years ago, but we have been friends with benefits for about a year. I thought i was fine with it, i dated off and on and never saw him when that was happening, he kept saying he missed out chats and get togethers. I was diagnosed with breast cancer 9 months ago, and after all my chemo treatments are now done, and he was very supportive and helped me alot to get through it. now he has found a new gf and for some reason i feel quite sad. i dont know why i am sad and upset at times. at times i am happy for him to find someone who likes him and i do want the best for him. i just dont understand why i would be upset cause i never wanted to get back together with him. need some advice ..