Re: He is too big and rough for me
Many women don't like large penises and never get used to them and even if they can eventually accomodate the size, they never really enjoy intercourse. Other women will eventually stretch out and come to love them.
He needs to be patient and respect your wishes for gentler sex. Seems like he is trying, and maybe this is how he has previously had sex and you need to slow him down, at least until you get more used to his size. But, again, many women never really get used to it.
If you love him and he is otherwise patient and understanding, then give it some time.