You can get used to it Chicklin! I did! And now I don't pay very often, especially if a guy invites me out for a date. I've asked lots of guys I've dated about how they feel about footing the bill and they don't usually take exception to it. If i invite a guy for a date I expect to pay the bill and choose the place we go to according to my budget. Don't think too much about them paying - what I do is buy them a drink along the way and then offer to pay the tip/gratutity.
Maybe you think that if they pay for the drinks/meal/theatre/whatever, that you 'owe' them? How would you feel if the boot were on the other foot and you invited a guy out you fancied (obviously!) and then he insisted on paying but you'd chosen the whole date? Would you be a bit offended?
We get entrenched in old values of society, especially when man was the 'breadwinner' but now it's all about equality, so if he's worth it, let him pay for you and then work out how you can pay him back in other ways rather than monetary on that date.
Good luck, it does get easier once you start!