@HarleyQuinzel
It seems the original Dylan was the villainess. She tried to seduce her brother-in-law on her sister's funeral and even got married to someone else to be able to persue him more. Thankfully, she got replaced/isekaied by this delightful mother-bear Dylan.
And the FL was not a...
For those having doubts:
In the novel they most certainly did not just sleep next to each other. And they did it a second time the next morning after Ripley woke up.