Start with a warm and simple line that feels good to read. It leaves the conversation open and you’ll be able to know if she’s free to chat too. “Hi”, “Hey, what are you doing?” or even just a smiley face should work perfectly to start a conversation and bring a smile on her face. If she’s busy, she’ll tell you or respond when she has the time. There’s no way you can go wrong with that.
Choosing your words carefully, you ask your partner who he or she is texting. If you already know who it is, you might tell your partner that you are concerned or feeling second-place. Or perhaps you wait until your partner is in the shower and give in to the urge to scroll through his or her phone. Either way, you hear or see something that makes your stomach sink.
Another important thing a text like this does is to make you seem like the one in control, not her. You show her that you’re strong enough to say something as challenging as this, stand by it, and put the ball back in her court to react to it. Finally, a text like this will most likely make her laugh. When she reads it and sees what an outlandish statement it is, she’ll probably laugh a little. It’s a funny line, and one she probably wouldn’t get too often from guys. (If she’s more of an uptight woman, go ahead and throw a “smiley face” or a “lol” at the end of it. You can also interchange the word “diddler” with any other noun of your liking—anything that you feel would be funny and challenging at the same time. I like this particular word because it really isn’t all that offending and blatantly comes across as a joke rather than something a little harsher that she might take the wrong way.)
I say loosely followed here because you don’t want to always text her eleven minutes after she texts you if she usually takes about ten minutes to text you. If you develop a pattern of taking the same amount of time to text her every time you respond back, she’ll pick up on this and know that you are literally just waiting to text her. It’s nearly as bad as texting her right away.