This was one of Owen's least expected, least desired situations. He'd hung up with Ianto when he'd gotten to his car; the drive to Tosh's place wasn't necessarily long, but it was just long enough to make him start to actually think things through. He hated second guessing himself, hated thinking about what he was going to say, how he was going to be able to say anything, especially in this situation where there was no right answer, just plenty of wrong ones.
Once he'd parked outside - a few cars down from the door, but it was lucky he found parking to begin with - he'd taken a moment to kill the ignition and then bang his head against the steering wheel, lightly, trying to knock himself straight. He was going to deal with this mess - Ianto's mess - and he was going to do it as best he could. It was better to have tact. To be a doctor. Bedside manner, Owen Harper, remember that?
God damn it.
He made his way to Tosh's door - he was a bit surprised he even remembered where she lived, but he wasn't going to question how his brain worked - and rapped his knuckles against the door. Forget doorbells.