I Feel Abandoned

My friends abandoned be because I grieve about my mom too much. They tell me I'm being selfish and only thinking of myself which isn't true. My ex bestie was like, "Get over it! People die. Why are you grieving over a drug dealer that proved that she didn't want you? She doesn't deserve sympathy for leaving you guys and chosing drugs over you. Let her go already and move on!" It's only been five months and I'm being told to move on. People are getting tired of me posting about her and never liked my posts. My mom wasn't the best mom I admit, but I wanted a loving relationship with her but she wasn't interested and never kept her promises. I want her back! She passed May 10, 2019. Two days before mothers day.