Is she mad at me?

Day 1: girl texts me because I haven't texted her first in a few days. Half a day later, she double texts me. A few mins later, I respond. I tell her that I was busy all day, etc. We chat a little bit, she seems happy. I end the conversation after a few minutes because I have to go. Then, she tells me to let her know when I'd be free to spend time with her. A few hours later, I tell her I'd be free on (day 3 and/or day 4).

Day 2: we don't talk. She doesn't check my message.

Day 3: She doesn't respond to my message, but she texts me first and talk to me about a tv show. She asks me a question about it. I reply a few hours later.

Day 4: No response by the middle of the day, so I text her again. I tell her that I wouldn't be available this week after all (which is 100% true). She checks my message a few hours later but leaves me on read.

Day 5: no response from her.

Day 6: no response from her. I text her in the late evening. I ask her a question.

Day 7: she replies to me early in the morning. She tells me that everything is fine and that she has just been busy (and that she will be during the weekend as well). We talk for a few minutes, she doesn't seem to be mad at me, etc. Then, she suddenly goes offline without saying bye.

Day 8: she sends her reply at the EXACT SAME TIME as on day 7. Her first message has a cute emoji, but the 2nd one seems a bit cold (no emoji). I respond 20 minutes later. She checks my message a few hours later but leaves me on read again (though, my message didn't require a response... but still a bit rude). But again, she's supposedly busy for the day... I send her another text, letting her know when I'd be available to spend time with her (for real, this time). I ask her if she's still interested in going out.

Day 9 (as of now): she doesn't check the messages. Still on delivered. But again, she's supposed to be busy today.
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But I can see that she's active a lot on her social medias. But again, everyone can access their social medias on their phone... so maybe she is still busy. Though, we usually chat on a website that doesn't seem push notifications.
Is she mad at me?
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