Theory about Bree’s phone calls
So we know Bree is getting mysterious phone calls and is saying this is her chance to have a real family and not just feel like she’s a guest in one (or something along those lines).
We know it’s not Oliver. I think it’s Marianne.
My theory is that Bree finds out she’s pregnant with Oliver’s baby, and Marianne convinces her to keep the baby and let them adopt it. In this theory, she would probably take a semester off to hide her pregnancy. Marianne and/or Oliver would help support her/get her time off school to accomplish this. It wouldn’t be that hard. If she got pregnant in November or December, she wouldn’t be seriously showing until late spring, when school is letting out anyway. She would have the baby over Summer break. At most, she may need to miss a few weeks.
I think that they prey on her own desperation for love and a family to convince her to keep the baby, and then promise her this family life where her child will be well cared for and she can visit and be as involved as she’d like without having to tell anyone about it. The motives are that Marianne wants to make Oliver settle down but is struggling to conceive. Bree would try, and have some semblance of a family life, but ultimately realize she’s not really part of it. She’d walk away because it’s too heartbreaking and complicated for her. I think she hides all of this from Evan.
Then, Oliver and Marianne eventually get into trouble with the university for any one of their many unethical behaviors. I think Marianne may be extorting Bree now that she’s married into money to help pay for the child’s needs and/or to help support them. Or, they could be trying to convince her not to marry Evan because they like having a free nanny/help and are using her childhood to manipulate her into thinking she is abandoning her kid.
It’s a wild theory but idk, everything in this show is wild.