I want to reach out to my ex

My ex and i officially broke up around 1.5 years ago. I want to reach out not because i want to get back together (we are both in new relationships now) but because I’m going through a lot of grief. My grandmother died from covid back in April, my friend passed away tragically 2 weeks ago, and 4 days after my friend passed my grandfather dropped dead. I am just going through a lot. He was really close with my family and I really do think he would want to know. He always knew what to say when going through this stuff. Grief is a really confusing time and i want to reach out but don’t know if i should or what i would even say.