I see,....so basically there is no other way to work or live there unless he marries me?!
He doesn't have to actually marry you, but you do have to live together for 1 whole year to qualify as a common-law spouse. You can easily do this since you can come to Canada without a visa and live together for six months, then you leave Canada for a week or two, and then come back and live together again.
However, you will not be able to work. You will be here as a tourist, and you won't have the right to work, study, or access healthcare.
Alternatively, your boyfriend could come live with you in the States; works the same way, except in reverse (he can't work, study etc).
It's really not that difficult for US-Canadian couples who are in long-term, serious relationships to get through this. If you and your partner are committed to each other, you can easily get a PR in 12-20 months from today.