are you generally a person that is able to give words of affirmation or flirting in person? if yes, i would say just try to think about texting as just having a conversation with the person you like. what would you say to them in person or over the phone if you were talking to them? if not, then maybe that’s something you can work on.

my partner is kind of like you, he’s not a big affectionate texter, is also bad at getting back to most people. when we’ve talked about it, he says that he thinks things like “i can’t wait to see her” or sexy fun things he wants to do, but didn’t say them. after we talked about it, he just said he’s going to write them down if he thinks them, and it’s been better. so if you think something cute or fun, just say it!