sometimes I hate it too!
I've never been tempted to give her a bottle - well, not of formula
- but I did express some a while ago, just to see what it was like, and how it would be with DH feeding her instead.
DH couldn't work out how to feed her the bottle, and I couldn't help because I didn't know either.
I decided that it was a lot less faff just to do what we were doing.
I prefer Bfing for these reasons - it's free, i get to eat loads (because it makes me sooo hungry!) without guilt, I don't need to faff around making bottles etc to go out anywhere, I don't need to worry about sterilizing (especially useful because I'm here at the shop, and it's too much hassle to sort out a bottle/sterilizing/warming up when customers could be coming in the shop!, I can just pick up DD and undo my bra - latch her on and she's happy (if I were bottle-feeding, I'd have to sort it out first), I can co-sleep and feed DD as and when she wants it, and go back to sleep.
But yes, sometimes when she's fidgeting and when she's getting distracted, and when she refuses to latch on properly, when I can't just leave her with someone else for a couple of hours (but my PFBness doesn't want to anyway!), when I have to take her out with me in the evening just in case she's hungry (again PFBness doesn't want to leave her!), and when she needs feeding when people are in the shop, and they stand there staring at her going "ooh, what's wrong with you then" so I can't just get on and feed her because they're watching .