I'm sorry, this might be a bit of a long one.
I have a friend that I have been friends with for 11 years, we are both 27. For those past 11 years we have been very close, before lockdown seeing each other around once a week.
I bought a new build house in December 2019, my friend lives with parents. When I mentioned that I had bought the house to my friend she wasn't very supportive so didn't really mention it again until I was ready to complete (June 2020) she has also never asked me about the house.
Around April/May time during lockdown we were talking frequently and dropping off pick me up presents to each other. We didn't see each other during this time. When we were allowed to meet up outdoors we met up for a couple of walks.
In June I found out that my dog had cancer and he had to be PTS. This friend knew how much he meant to me, she also has a dog and one of our hobbies was going out on long walks together. I asked her if she wanted to meet outside so she could say goodbye. She said no. My partner told me to give her the benefit of the doubt and understand that this might have upset her. She didn't call and sent 1 message. My DP has also been made redundant 3 times this year, again i've had no support.
Since my dog died and we moved into our house she hasn't bothered with me at all. This is the same with her other friends. During the lockdown she started to hang around with a group of 18 - 19 year old girls breaking lockdown rules, having sleepovers and going around to each others houses to drink (I have not said anything about this to her or passed judgement). She is a 27 year old teaching assistant who is hanging around with teenagers and now seems to be acting like a teenager. It all just seems really strange to me.
I've told her that I feel like I had no support from her when my dog died or when I've been dealing with financial issues. Her response was 'Well you didn't tell me that you needed me.' I've told her that I miss her and have tried again to meet up with her outdoors for a walk, she's cancelled on me again last minute because she was at one of her new friend's houses last night again.
Am I an idiot for trying to continue this friendship for so long? Should I just accept that I don't need to be friends with someone like this?