Friend going through a very difficult time, if she into me or just looking for comfort?

Very long story cut short, my female friend is going through a very difficult time and I've gone well out of my way to help her, listen to her emotional issues (she is a long time sufferer of depression and anxiety), and recently when she had a legal issue I spend every day with her disabled mother (who i didn't know prior to this) to help her, driving 150km a day because no one else would.

After not seeing each other for many weeks but staying in touch constantly, she came to a friends holiday home, in a very quiet place so she could get her head straight for the night. When everyone went to bed we were together on the sofa and she put her legs on mine and eventually I began to softly caress her calf with my thumb. I'm crazy about her but it was also a sign of protection, that she would feel safe with me, since nearly everyone abandoned her when she needed them the most. She didn't object at all.

We then went to bed together but the room was so cold with the heater broken, we went back to the living room as we had the fire place there. I initially suggested extra blankets but the issue was the cold air blocking her up instantly.

She went straight back to the same position, legs on mine and let me caress with my thumb and we stayed talking like this until about 6am when she fell asleep. I stayed up drifting in and out (i was sitting upright, not enough space). An hour later she woke up and says she was really clammy, sweating etc and she put my hand on her tummy and indeed she was. I kept my hand there and eventually she pushes it away, maybe my hand was too hold or cold I don't know.

She Whatsapped me this morning at 3 am asking if I could call her (i'm her emergency contact which she knows) so I did, she was tired and crying and wanted to speak to someone.

I'm incredibly bad with signals, might as well need a giant LED vegas sign to get me to know what's up. I'm scared of rejection. And we're also going into business together, something I don't want to mess up

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Update: Not long after I wrote this she phoned me and asked to be picked up, she was crying because she barely slept still. I drove over, picked her up and took her to her house. We relaxed for hours together and I told her how concerned I am for her. She unexpectedly had to work from 2am till about 8am, I stayed awake waiting for her and all she could do was cry. I basically put my foot down and told her to have a proper sleep for once, she's been running on fumes for weeks. She slept for 15h
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so long that I felt concern for her. I slept about an hour in all this, periodically checking in on her. She woke up around 3am and we had a short chat, she said she was going to go back to sleep and if I could help her with some car related things in the morning.

Well lo and behold... she was gone shortly after that (I didn't know that she left the house even), so when I was sorting out her car and everything, she was with friends... I only found out when she phoned me up if I can pick her up.
Friend going through a very difficult time, if she into me or just looking for comfort?
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