I'm sorry for your loss, Lola. If you cannot immediately change your living arrangements - that is, get the f'ing thief out of your place or you get out asap - then spring for a lock on your bedroom door and keep your purse in there - locked - at all times, even when you are home. As for the money, that's gone, you won't get it back unless the thief steals the sum from someone else. My belief is that the stolen money is long gone by now. Maybe you need to do an inventory of your place and see if anything else - clothes, jewelry, furniture and furnishings - is missing. If someone will go into your purse and take money out of a wallet, that same someone would have no compunction going through your jewelry box if you have one, going through your drawers and closet, etc.
Thieves come in all shapes, sexes and sizes - and they can be family and people we think of as "friends." It's a hard lesson learned, unfortunately. While you're busy getting rid of this so-called "friend" or relative from your living arrangements, protect yourself in the clinches, girlfriend, get that lock on your bedroom! If you share a bedroom, then get a lock on a closet somewhere in the house, and if you can't do that, get down to Office Depot and buy a lock-box for yourself and put your purse and valuables in it. It will be a little harder to get into than opening up your purse when no one is looking...