Yes, it will subside, but try not to stay mentally hung up on it for longer than you need to. I think the trick is to take some time in the beginning phase to just kind of feel the hurt, without succumbing to it or becoming hopeless. Then take those baby steps to start putting yourself out there a bit more again and meeting new people, even though that's the last thing you feel like doing when you're in the thick of the heartbreak. There will come a time where this won't feel nearly as raw or difficult. So hold on to that, but accept that it will hurt for now.