I’m 33 and I’ve been with my boyfriend for 5 years now he’s older (48) and I’m so scared that one day he’ll just leave me I do struggle with PTSD,GAD, and OCD  so I tend to completely overthink things he doesn’t make me feel unloved and I’m very open with him about my mental health but I just feel like a failure and a burden. Before him when I was about 20 I dated a guy a really liked and he just dumped me with no explanation and I feel like this will happen I’ve been up worrying myself and crying because I know he loves me so much and I’m angry at myself because why can’t I just be happy with him ?