That's great Esther you phoned and chatted with your aunt. I agree that we do get tired of seeing things purely from others' point of view and making excuses for them. If you are still feeling the need for some support from your aunt would you feel comfortable calling her again to ask for what you need. Of course firstly I'd suggest you list firstly what type of support you'd like to have taking into account what would be realistic for her as well. Maybe as you miss her it may mean face to face time with her, yourself and your six year old say a cafe in a park.
Otherwise are there other family or friends who are more available to give support to you that you can ask for it from.
Hugs Deejjay