I lost my lovely mum (63) very quickly and brutally to cancer a few months ago. My best friend came to the funeral, shared a weekend away (under duress) with other girl friends a few months later and now I never hear from her. She knew my Mum really well and knows that this was particularly devastating for our family (our dad died when we were toddlers and we also have a teenage brother to support. The only contact she made after the funeral was a jokey text. I am hurt and sad but worried that I am loosing perspective and bitter with grief. AIBU?