I need advise!!!

Monica • My best qualities I have is: I can nap, I like to watch Netflix for long periods of time, and I like makeup(:
My SO says that sometimes he feels that we don't really love each it's just lust. I asked him why and he says it's because we don't anything besides cuddle really. But, we both have super busy schedules and I work all the time. So the only time we do see each other is at night time. And we don't have sex like all the time maybe a couple times a week. 
I know it's love and he says that he loves me. I don't know if I'm just over thinking this or should I worry?