Idk what to do!

I have posted about losing my oldest son before and what I went through with my aunt. To refesh, after I lost him she told me to get my shit together and she will sign her rights over. 3 mths later she came over and saw that I had it together and I was ready then continued to tell me how she was never giving him back and asked me "did you really think I would do that? I'm already attached." I never saw him again a

nd she never told him about me. Fast forward 6 years and he starts asking her questions like why he looks so different, why he has 2 moms, and why his nana is my aunts sister. she felt cornered and finally told him. I got 1 visitation which i was extremely grateful for and since then I have left everything up to. them because i didn't want to overwhelm my son. so today i get this message and i couldn't help but speak my mind because i have been holding onto it fir too long and I'm tired of walking on eggshells and her dangling him in my face.

I'm furious that my son is going through this and part of me feels like she is laying it on a little thick to make me feel bad. This has gotten so bad that part of me feels like I need counseling too.

my question is: what should I do? what can I do? I love him to death but I have other kids to raise and I cannot keep putting them through this, but I also don't want my oldest feeling like I don't want him because that is all I have been living for these past 6 years.

Please no judgement, I know how this app can be and I beat myself up enough, thank you.