Have I fallen out of love with my husband?

I'm seeking advice from those with experience in marriage or divorce. I'm a 30-year-old woman married to a 33-year-old man for eight years, and we've been together for twelve. We have three kids aged 11, 7, and 15 months. To provide some context, he is an amazing partner—he shares household chores, offers emotional and financial support, and spends quality time with our kids, though his night work makes that challenging at times. We have a strong friendship, often finishing each other’s sentences and sharing lots of laughter. However, I’ve noticed a significant lack of physical attraction for quite some time now. Although we do argue, I believe that’s normal in any relationship. I have struggled with low libido for many years since becoming a parent, and while I've often pushed myself to be intimate, I no longer feel compelled to do so, which is creating issues for him. I really care for him; he’s truly my best friend and has supported me through so much, yet I can’t shake the feeling that I might be ungrateful. It’s hard to describe, but I don't feel that initial spark or that I'm actively in love with him. I often think he deserves someone better because I know I can be emotionally challenging. Is this a common experience after being in a relationship for a long time, especially starting young, or should I consider seeking couples counseling or personal therapy?