You can also try some other methods of feeding, instead of bottles. You can get special things from Medela called Finger Feeders and/or a Feeding Cup. They are a little bit more time consuming, but many babies do much better on them.
There's also a bottle called Adiri (which you can get @ Babies R Us now) which is shaped much like a breast & many babies take to it well.
And as much as I can totally relate to your wanting some time to yourself & getting a break, just remember that the first year flies by SO quickly & that it won't be much longer AT ALL that your baby will be nursing less frequently & therefor, be less dependent on you. I mean, another month or so & you'll probably be introducing solids!
Hang in there! You'll get a break soon!