I'm going to share a few of my impressions.

I would not accept being someone's secret. Either they are with me and open about it, or they are not with me.

It doesn't sound like she's is ready to move on. People in general, know what they want and will be very clear about it. On the fence communication or vague language usually indicates either they don't know or an unwillingness to commit to anything.
Maybe she wasn't looking for financial support but needed emotional support through the divorce process.

Also, I can't wrap my head around that second part. If someone was sending me a care package, flowers, whatever...acts of love, I would never call that a problem. Like, how lucky is she to be receiving that from someone who genuinely cares about her? That is so sweet and endearing.

Honestly, I don't know her. Something seems off about this situation. I think you should listen to what your instincts, inner voice are saying.