Hinge: what to say when she's been up late working on a project

A line like this is her explaining why she's been slow to reply and why she feels worn down. The detail about 2am and barely functioning is the part that carries the feeling. She wants to be understood as someone who worked hard, and she's probably wondering whether the delay made her look flaky.

Read the apology and the exhaustion first. The project is background. If you ask what the project is, you're accepting the invitation to explain, and that can be fine once the feeling has been acknowledged. Start with the feeling and the project becomes something she chooses to elaborate on.

The first job of a good reply is to show you heard the tiredness and didn't just skim past it. Name the thing she actually said, late nights and running on fumes, in your own words. That tells her the message landed and that you're not judging the delay.

Second, make it easy for her to stop talking about work. Some lightness helps here. A short remark about how the last stretch of a project always feels like it takes three times longer than it should gives her a moment of recognition. Then a single, open point of interest in her life outside the project gives her somewhere to go next. Keep it to one thread so she isn't handed a list to manage.

Send your response when you'd naturally be checking your phone, not mirroring her late-night energy. A reply sent at midnight reads as more intense than you mean it to be, and it can make her feel she's being chased in her off-hours.

If she's just come off a deadline, give it a few hours. That's enough to look attentive without making her wait long enough to wonder. If she doesn't reply to your message, don't pile on with a follow-up about the project. Send one short, warm line the next day or two later, something that doesn't ask her to do anything. If she still says nothing, let the thread rest. She's likely recovering, and a quiet week is normal after a crunch.