Actually the more you try to avoid it, the more it'll haunt you.

You just need to accept the loss, and move on. You know there's no chance to get back with her.

Be very honest with yourself, the "her" that you miss, that you love, that you are attached to, is the "her" back then. The person she is today is already a different person, and going to get a baby already.

I don't know if its your ego not allowing you to move on from the loss, or you were so into her that you can't let go. Either way, she's gone and the only person stopping you is yourself. There's no need to delete photos or do anything extreme, because it is how you feel that is stopping you.

When we can't change things, we change how we feel about things. As for the "how", you must fully immerse yourself to feel the loss, to feel sad, to feel all the emotions associated with the loss, and after that forgive yourself for losing the person, and tell yourself you can be better and do better.

Everyone we meet in our lives, whether they are stay in your life, or were just a tourist stopping by your life, is here to give you something. Be it joy, sorrow, loss, or whatever, it is part and parcel of life. Never knowing loss, you may not have the appreciation you'd have down the line, and the joy that comes with it.

You will visit this tered 10 years down the road and laugh at yourself being an idiot. But we were all idiots once, and just grow (hopefully) wiser