I really value my friend from school. I have a lot of friends but I treasure my school friends as I have known them for 30 years. My closest friend just seems to not value our friendship anymore....we agreed to keep a day free for her surprise birthday treat that I had planned, she asked if it could be moved not giving much of a reason and I have asked her 3 times now for another date...we are meant to be going on a 10 day holiday in September but she won't commit to any dates saying she "may" have a course, then but would like to go, she cancelled an evening out as she had had a busy day but didn't offer an alternative, I suggested a weekend away and she said she was keen but never got back to me...I feel really upset as I feel that someone I felt I could rely someone who understood me has just drifted...my mum died, my boyfriend who I loved left me and this just feels like another loss. If I am being honest I have never found her emotionally intelligent, she's much more of a kind, practical friend but we have always really valued each other. Any ideas how to approach this ?