Newly Single and Lost Without Him

Since the breakup with my longtime partner three weeks ago, I find myself in a new kind of loneliness. Last night was particularly hard, feeling his absence everywhere, I couldn't resist touching myself, remembering how he used to stroke me softly between my legs, how his fingers felt inside, slick and warm. My hands moved over my body like they always do after we've made love, seeking out that familiar pressure, the way his mouth would trace down my skin to find my clit, teasing it until I was soaked and ready for him. But there’s no one here now but me, and even as I touch myself, I long for something more than just relief, longing for a hand other than mine to make these memories feel real again. Am I supposed to be feeling like this still? Is it normal?