Yeah I'm not so clear on TR's actual personality/personhood yet. If like she's just a replica of Claire's true ex partner--remember there's a sort of flashback of a young lady with similar length and color hair to TR reaching out to Claire, but is clearly behaving not in a "your order is my command" sort of way.
Kinda leaning toward Claire being a super genius when it comes to android creation, she had a RL partner that had some sort of Big Bad Thing happen to her and Claire managed to "upload" her into a new android body, and Sheryl is in the mix in there somewhere, discovering this, and does what she has to do in order to manipulate Claire into forgetting who TR really is in order to force her to continue development of a very lucrative technology. Or something like that. I'm sure this will look stupid once the story is finally over and I will be completely off the mark, but it's not fun unless you manage to look like an utter tool after everything has finally been revealed. lol