Sometimes the things we want the most are the things that we can't have.
Tammie sounds half the time like a scorned lover. And gross, no, I'm not meaning to associate that comment to anything incestual. What I mean is, among some of her fair points about how Amber is a selfish leech, thoughtless about her mother and others, and the very real problem with what Amber said about Tammie supporting pedo something, Tammie repeatedly says things like, "I thought when you moved here we'd spend time together, exercise together; I wanted to be here for you, etc.". Welp (putting aside it's Amber), too bad. Sometimes people don't like you or want to spend time with you as much as you do them. Sure, that's hurtful, but it's not a legitimate basis for
anger or
blame. The way Tammie talks about it, Amber's not getting in touch much is a "wrong" simply because that's what Tammy wanted to happen. She often says this without even saying "I did x or y for you, and you didn't keep up your end of our bargain" or "you blew off our plans with no notice and left me hanging" or similar; she just says "Amber didn't want to be close to me" as though that in itself is something to be criticized or held accountable for. If Amber used her for certain things and then dropped her, that would be one thing, but you can't make someone love you or like you, and they're not wrong just because they don't.
And I forget what was going on in Tammie's life when Amber was a kid, but I suppose someone in Amber's position might not immediately (or ever) trust or like or feel close to (beyond general familial connection) someone they only met in their teens - and who theoretically* could have helped her or been there or had a relationship with her when she was living with drug-addled parents and going from one foster home to another. Not saying Tammie was wrong not to be (if she even could), but I would certainly not blame a kid in that scenario not to want to be besties 20 years later. And it's weird for the aunt on that situation to complain that her niece, among other legit gripes, didn't/ doesn't hang out with her like she imagined she would.
* maybe; again, I'm forgetting where/ what Tammie was when Amber was a kid