pleasing bf

Ok I'm gonna jump right into it. My bf has a huge penis. I give him head but sometimes I don't feel like doing it so some days I won't and he never ask me for it . He'll just end up eating me or or making love to me.Am I wrong? he pleases me to the moon and back. Do u think he's thinkin badly about me in the sex dept? I love doing it but sometimes I just don't feel up to it