Question: I love my boyfriend so much but...

have you ever enjoyed sex with him? as a woman on anti-depressants, I can tell you that any pills you take could affect not just your ability to orgasm but also to just *enjoy* sex. If that's not an issue, then I would say you guys need to experiment with things that turn *you* on... figure out what *you* like and try to integrate that into your sex life. but never tell him you don't feel excited having sex with him (or any variation of that). Guys have egos more fragile than eggshells.

If you love this guy ALOT and have gotten off with other guys, WHY would you think its YOU? it's probably him.
switch things up a bit. read some "Cosmo," get some sexy fun tips and bring something fun to the bedroom.

i would tell him that you could lay back on the sex, or tell him that you aren't really enjoying the sex

It's not uncommon for females to be unable to orgasm through intercourse alone. You may need to do a little self-servicing during intercourse to achieve orgasm. And there's nothing wrong with that.

get a vibrator maybe???

Also don't worry, there's nothing wrong with you. That's just not the way you two really mind meld.

Tell him about this. Let him know that you aren't comfortable in sex just yet, and maybe spend more time really,really getting to know him.

question...was he a virgin when he met u???

obviously don't tell him that ur not enjoying it BUT try new things & talk with him about changing things up a bit. maybe if u try new positions & whatnot, u'll find things that work for u.

Although suggestions will help, it sounds like you want serious improvement and not slight changes.
I'd recommend getting him to agree to an 'experiment week' with you. (Telling him outright that he's not good in bed will break a guy's heart...don't lie to him, but let him know that you're not really focused on/fulfilled by sex, and want to see if you can improve it).
This will really only work if you two are very candid and not at all shy of asking for what you want.