Some background : I'm a single guy (28M) and live alone; my friend Maya (31F) is a single mom with a kid, , we met around 5 years ago when we used to live in the same building, where He would play with my nephew that I used to babysit. After I got my own house I started to babysit Luca, especially on weekends, since is on the way to Maya's work and my nephew is there often.
The problem started when Maya's sister was staying with Her temporarily, one day Her sister drops Luca to play with my nephew, I invite her for some tea/coffee inside before they go, we make small talk, but then she made comments about me being a good Dad and husband material. At first I though she was flirting (?) but then she says: ''You know, this house is nice but its going to feel small when you and Maya start having kids''. duo to a look of confusion on my face she then says: ''I know you didn't want to tell people yet, but Maya tells my everything, and I can keeps secrets very well, so please don't be mad at her ok?'' at that point I was to confused, so I just nodded until she left.
Later that day called Maya and demanded answers, she got quiet at first but then answered, it turn out her family is VERY traditional , and they where giving her a hard time for divorcing, being a single mom, and her life choices in general. They were treating her like trash and demeaning and insulting her constantly, they even said that she should have not divorced over some ''small'' indiscretion like cheating, because ''no decent man would want damaged goods like a woman a single mother over 30'', that was the last straw so on impulse she said: ''well my fiancée does not think I am damaged good, and he's a very decent man''. She lied and told her family that I was going to ask for her family's blessing a year from now but that in the mean time I wanted to keep it a secret until its official, and even ask her family to act surprised when I asked , they believed and started treating her a lot nicer since.
She is now terrified of coming clean to her family and being treated even worse than before and begged me to go along until she figures out a solution. I have no interest into getting a relation anytime soon, but by what Mays is saying they were making her life a living hell and will not hesitate to do worse, How do I proceed here?
TLDR: My friend lied about us being engaged to avoid harassment from her family, but I have no interest in being in a romantic relationship with her, but I'm still worried about her family abuse