Did I deserve to get ignored/ghosted like this?

This girl started talking to me 3 months ago. We kicked it off amazing and she certainly showed signs she liked me in my opinion. She does have a boyfriend and I never once crossed any boundary. She came in tears to me saying that he was cheating and she tried calling him and ignores her. So for 3 days she looked so sad and I decided to text her to grab some food to cheer her up. She never spoke to me like she used too, hides, doesn't answer texts and now it's just small talk. She went from burning hot to ice cold. Why?

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+1 y
anyone at all?
Updates
+1 y
Anyone else?
Did I deserve to get ignored/ghosted like this?
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