Some people are also just sticklers for grammar. If she sent you a message and then realized her mistake, she might be too much of a perfectionist to leave it alone.

For instance, maybe you two are flirting with each other and she sent something like, “I’d never hang out with your ugly mug. ” On its own, that can sound a little mean—but adding a winky face or a heart eyes emoji will show you that she’s just messing around.

She could have also messaged you something while she was drunk, and then unsent it in the morning. Drunk messages usually aren’t fun to read the next day, and she might be feeling silly or embarrassed about it.

The best way to know for sure is just to ask! Say something like, “Hey, why’d you unsend your message?” If she was angry that you were online without responding, try to respond a little faster next time.

You can also let her know if you’re going to be busy. Send her something like, “Hey, work is super swamped right now so I won’t be able to message you until I get off. Talk to you later. ”

She might also follow up with something like, “Nvm, found the answer. Thanks!”