Jumping Spider Care

Just have a question, and maybe someone here would have an answer.

I never had a jumping spider before, my baby that arrived active, and curious, a bit shy, but it is fine.

But I was searching everywhere, and thoughts that maybe the fruit fly is very small for her, so gave a green bottle one (not a wild one), she take this fly to her hammock, and than, after some time, when my spider throw the fly out, I went to check her, and noticed that she had a big drop of something (brown/pink ish colour), I thought thats her abdo split, and was worried a lot, but now she seems fine, and slim ish again even i gave her a fly day befote.

Am I doing somethint wrong? And I need keep give her fruit fl instead?

(Pictures of This drop, and yesterday puctures of her, just day…