She's not interested in me, is she?

So I started talking to this girl yesterday and for the most part we text throughout the day aside from her replying back later. Sometimes she'll say things like "Mhmmm" which make me think that she isn't interested in the conversation. She did say that she thinks we're better off as "buddies" at least for now. She'll send me voice messages talking about something and sometimes she'll ask my opinion on what she should do or get to eat and I think maybe this is her way of testing me to see if I can make my own decisions? She sent me a snap of her cat and her bare legs were in the photo so I decided to compliment her on her cat AND said that I looked at her body too. She didn't reply to that part specifically so I wanted to apologize for saying that, but again she ignored it and simply went on with the conversation. I feel horrible now. Mainly because I'm worried I made her uncomfortable, but also because I think that means she rejected me. So I really want to try and stay friends with her for now, but I don't know how to proceed?

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Also, she was texting me right now with a few spelling errors so I asked if she was tired and she said "mhm nigt" and that was it. I'm pretty sure she fell asleep right after that, right?
She's not interested in me, is she?
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