Well, not that I recommend this to anyone, but you could do like I did...
Throw all your savings into one account, with ATM access. Sell anything material, that is not of any "emotional value". Store what you feel you may want to keep for another point in time, with a relative. (Don't leave anything with friends, it will be gone, damaged, stolen, forgotten, or reclaimed.)
Buy a good traveling vehicle, like a wagon. (For me it was a 50cc scooter.) Pack only what you need to live, and can wash along the way. And jump on the open road, "Destination, someplace else." For me, it was, "Destination, someplace warmer." (More like... some place that didn't get -20F every damn winter... for months at a time.)
http://www.isawhim.com/scooter/journey.htm
Helps to have a destination, but summer is here, and there are a lot of great camp-out sites. (Summer is the time to travel. But keep north if you melt at high temperatures.)
Jump into any library, and you can beg to use the internet. It is easy to find shelters for emergencies, and if worst came to worst... police can always direct you to a sleeping quarters. (Though you may have to convince them you are drunk. LOL.)
Ok, so journeys are not for everyone... I have a lot of luck, and great persistence. If I want something, I get it. Lucky for this world... I don't want a lot, and I need even less. It just works-out in my favor.
When you have nothing, everything is a gift. When you expect nothing, everything is accepted. When you live on the top, every move is down. When you live on the bottom, every move is up. It is the horizontal motion I hate.
Wish I could offer you a place to chill... because you sound like I was... several years ago... Trapped in land that keeps replaying itself, but things keep falling out of reach, leaving only others things within grasp and sight. (I assume you see everything there as "Yours and hers", but now see it as, "Was ours"... There is no more "Yours", to the things around you. While all new things are, "Could have been ours"...)
Don't "get over her", she was a monumental point in your life and memory. However, you don't want to stop time there... no matter how much you wish you could, or think you can. Be glad you had a moment like that... many of us never do. You already have something that others will never have.
Eventually, you may try to give another person, what was given to you. Because you can, when you know what it was that you had.