Relationships are never straightforward!! please advise!!!?

heres the thing, my boyfriend is really smart,his hole family is very well educated, he done excellent in both school and uni,hes an engineer. i didnt go to uni, and now in am just working in a clothes shop, which i am happy doing.i feel like my boyfriend is way out of my league because he is on a much higher intelligence level, I love him so much and he loves me but i am so afraid he will finish with me and want a girlfriend on the same "social level" as him, like a lawyer or a doctor.am i being silly here?