So I've been texting this girl for two weeks now, and I'm awful with flirting... AWFUL!!

she has been throwing me alley oops and I've been missing the ball entirely

Examples:

Her: "Guess you'll have to show me all I don't know"

Me: "My private teaching lessons are very very expensive... But I feel like we can work something out .. we'll see you when you come down"

And

Her: "We can watch football in class, right? If I follow all the rules?"

Me: "no you can't, you have to stay after class and do math equation"

But the rest of text will just be about random goofy stuff that will try to make her laugh..... Random stuff that makes no sense, but she still texts me back

I send her at most 3 text a day, some days they are less, some are more, rarely. And they be times where, I will die out the conversation, and 3 days later, she'll text me back.

Should I be making these conversation more sexual, so I don't get friend zone?