Assuming he is physically okay . When my dad died , the first person I called was my ex boyfriend who is also my BFF . We bonded when we were teenagers about our terrible fathers , and had supported each other a lot as adults as we navigated those waters him deciding whether or not to invite his dad to his wedding , me deciding whether or not to cut all contact , etc . My BFF didn ' t respond to my texts or calls when I told him my dad had died , or , a couple times after I had texted him , would call when he knew I was at work and couldn ' t answer my phone . I just knew in my gut that something was up , and I should ' t push the issue . I just couldn ' t lean on him for support in that moment . A few months later , we met up when he was in town , and my suspicions were confirmed my dad dying was basically me living the worst case scenario . I cut all contact , and now , the book was closed and there was no chance of having a relationship with him . It was gone forever . It triggered all the fears he had about his dad dying , and how all of that loss is just cemented into history with that death . Perhaps this death is making him face the reality of his terminally ill mother , and he is pulling away because of that ? I can ' t imagine that the depression is helping with any of this . I would text him and tell him that you love him , and care about him , and if he is freaked out that it ' s okay , you just want to know that he is safe . If he doesn ' t respond , start contacting friends or family who live close to him , and make sure he is safe . Best of luck .