Responses

No, definitely not. She's lying about what Rin said to manipulate Mayumi into leaving with her. She is a toxic, possessive bitch, 100%.

In fact, I'll bet you she's lying about miscarrying. She was probably never pregnant. Or if she was, she got an abortion. She only slept with the fiancee because she wanted to break up his relationship with Mayumi.
I don't actually hate that girl for actually two reasons:
-1st : is because she's the raison why Mayumi could move out of Tokyo.
-2nd : Because I feel like she might actually be a good person and all she wanted to do all along is to apologize to Mayumi but she didn't know how to. That's why she's lying now in order to take Mayumi back to Tokyo and make it up for her.
Well, that's anly my opinion. ╮( ̄▽ ̄)╭