Like others have said, it's hard to determine for sure, because I don't know how to-scale the chart you have is, but my suggestions, based on how the drawing appears to me:
1) Get rid of some of those end tables. You have four. At most, you should need two, one for each bed. The ones you have currently are taking a lot of space, and just encourage more clutter. My only end table is one of those folding TV-dinner type tables, with my alarm clock and space for a couple books on it. A lamp will fit, too. Can the bench go out of your room somewhere, like the hallway or the apartment/house entryway? Is there a reason you keep it in your bedroom?
2) Rotate the bed 90 degrees, if it will fit lengthwise between the closet wall and the door. Do the same for the futon, placing it in the opposite corner under the window. I think this will open up more floor space in the middle of and entrance to the room, and also stop blocking the entrance to your closet.
3) Who is this roommate, and why are you storing her dresses? Give them back to her, so you can fit more into your closet. If they're your sister's, who traded the room with you, then I guess there's not much you can do. But if you can give them back, do so.
4) Move the craft boxes either into the closet (where the dresses were) or, if there's room, along the wall behind the door when it opens. If you can fit the table there, that's where you can put the TV. If not, maybe take one of those superfluous night stands and use that instead to keep the TV off the floor.
5) Is the TV truly a necessity?
I don't have one and don't miss it ... and I would think if you live in an apartment or house, there should be a central TV in the living room for you to watch instead of really needing one in your bedroom.
Note: I live in a studio apartment with limited space. I learned really quick how much stuff I could fit in here, and how best to utilize the area I had, and the place feels pretty open and roomy (if i do say so myself).
Also note that I think my entire apartment has less furniture than your bedroom (even discounting the extra futon bed), and I don't have a TV to worry about (just my computer, which is on my desk).
These are just a few thoughts, and hopefully even trying some of them will let you see other (probably better) possibilities with your limited space. Good luck! And good for you, being such a great girlfriend. I hope your boyfriend's surgery goes well.