I have a strong feeling that my boyfriend's ...

From what you say it seems your relationship with your boyfriend is still at the beginning stages, and it sounds a bit early to be upset about the parents' reaction just yet. Give it a little more time, especially as you mention that your boyfriend doesn't like to talk about his parents too much.  Maybe he has issues with them you are not aware of, maybe they are angry at him for reasons you do not know.

After a few months, maybe you should all go out to a nice dinner out, and start a relationship with his parents. It might be easier than going to their house or inviting them to yours. 

dont passionate with his perents .

some times perents dont share their feeling reguarding their kids life .

supose u are a mom (very caring ). after some times you gought to know that your kid is attached with some one who want to attached with your family .and that time you feel that your kid is going too far form your love .so that you have to talk with their perents about your relationship and cocnfidently say that you are not going to detach him but you want to attached with them

I think I agree. Which is why I suggest you focus on your relationships with HIM rather than with them. When the time is right, you can deal with his parents.

Good Luck :-)