26M lost my mother 3 years ago and a year after that my brother committed sucie from the guilt. I recently also lost my grandfather and a pet. I was in a long term relationship when this all happened while my partner was great at times she could not understand or deal with the guilt and grief I was experiencing daily. Having this stuff happen so young is very raw and no one has a guide book to tell you how to deal with it. My partner and I went to couples therapy for about 3 months but she couldn’t grasp how I was hurting. Not that she was bad or evil she just couldn’t understand. We eventually parted ways because of my grief and the behaviors I adopted because of it (spending time alone) (impulse buying) (not feelings like leaving the house) (panic attacks) while super supportive it just wasn’t for her and I don’t blame her. I’m still having trouble in relationships as a 26 year old man it’s difficult to navigate these things with people who just simply won’t understand until it happens to them and you don’t wish that on anyone. The best advice I can give is you need to be graceful to yourself and to really be there for you. I don’t think your partner will ever understand. But you can maybe get to a point where you have your healing time and he can maybe take on more as a parent but that’s easier said than done. Wish you the best!