Okay, so in the story, Steve is woken up in the middle of the night by his phone ringing. Thinking that it is Maria going into labor with her and Natasha's baby, he hurries to pick up. But it's only some stranger (Tony) who is suffering from insomnia and dialed the wrong number. Steve and Tony then become texting buddies and friends, but haven't met in person.
I think Steve works at an arts and crafts shop as well, if that helps. Thank you for all your help!