Women are just like men. Do you remember that high school cheerleader that you have a big crush on? Well, after 3 or 5 years you would still be thinking of her while you're fucking another girl. I've realized this after going to a funeral and met some female college friends.
One girl who was already married got my number. When she heard my voice she went something like, "Ooh. You've got a very manly voice. I feel so horny right now." After sexually escalating with phone sex and she masturbated her pussy at the end of the line, she went into nostalgia on why she and her friends joined the college fraternity. She confessed that she found me so hot but the problem was I never took an interest in her. The surprising thing was she said two of her other female friends also felt horny about me and made bets on who gets to fuck me first.
The point is, if a woman is horny for you and fails to fuck you, she will want some form of closure to her libidinous desires some time in the future. Women make friends with guys for several reasons and one of those reasons is to get closer to the man that they want to fuck. If the guy did not take the initiative to f-close, this messes up girls minds for a long time.
Women are just like men when it comes to desire and hiding their sexual urges under the guise of friendship.
Instead of thinking about any compliments (you don't need any of those since she has already qualified herself to you by asking your whereabouts) find men's accessories that will highlight your crotch instead. Items like shiny belt buckles that point to your cock, a bunch of keys that you can pull and put back in your pocket near your cock, or just about anything that will catch her attention that you can place near your cock will help you a lot in your f-close.
Your cue is to be very sharp in reading her body language. When you catch her looking at your cock area 3 or 5 times, get closer and sexually escalate. Make sure that you control your body language not to show that you have noticed her looking at your cock. Once she sees that you have noticed, her ASD will kick in and make your f-close a difficult deal to negotiate.
Think Monster Cock Showmanship rather than compliments. She's not the prize. You are the prize with a cock that she has been longing for so many nights.

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Approach. Open. Escalate. Isolate
Here are my two essential rules on texting that will save you tons of time and money:
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