Hi JDK,
Yes, it does get better over time, but as others have said it can be a slow, and at times painful, process. In the first weeks after the end of my relationship, I just had to take it on faith that the intense emotional pain would eventually ease. And it does. Let yourself feel the emotions that come up, and show yourself some kindness and compassion by remembering that it is hard, it's ok to struggle with it, and that others here understand that struggle.
Some get over it in months. Some years, and there are some i believe will never fully get over it.
All you can do is take it day by day.
Very good advice. And I would add that I don't expect to ever fully get over the relationship, in the sense of returning to the person I was before. But I think that's a positive. I still have some painful days, but the pain is slowly fading. It's been many months now. And more and more I feel this experience will leave me with a deeper sense of calm and self-awareness than I had before. It's a miserable process after the end of these relationships, but it really is a chance (however unwanted) to take stock of where we're at in life, what we want, and how we relate to others in our lives.
When it's early days and you're overwhelmed with the pain and confusion, remember to be kind to yourself. You're hurting a lot. That's human. It's understandable. And, though the details of your relationship will be unique to you, so many of us understand the pain you're going through.