He's doing a good job of it, regardless of the typo. He's telling her what she needs to hear. Now more than ever, she needs to have confidence in herself.

There's a knock on the closet door. "You get lost in there?" calls Laura's voice. "We're jumping in ninety seconds."

I have to go now. But I'll text you again as soon as I can. Take care of yourself. <3

She wishes she had more time to think up something better to type. Something that would ease Josh's worries, or at least let him know how much she values him as a friend. This is the best she can do under pressure.