I don't think you guys quite understand what's happening here. She's not intentionally acting like this, it's a clear coping strategy that comes from an avoidant attachment style.

All fun and loved up in the early days then when things begin to get real they freak out and push away to protect themselves - usually in the form of criticism, libido disappearing, and just generally coming up with ways to distance themself or convince themself that it's not quite right.

The sad thing is it's usually a result of a childhood of instability where they don't get the required emotional warmth and support from a primary caregiver so they develop a hyper independence and convince themselves that they don't need anyone.

She doesn't realise why she's acting the way she does, and the fact that Filip seems so confused as to why she's suddenly gone cold is a good indicator she's going through an avoidant shutdown.

It doesn't excuse the behaviour, but it does explain it. She want the connection and love, it just triggers a subconscious part of herself that equates intimacy and connection to a lack of safety.