Missing the Familiar Touch of Him

I haven't been with anyone since John left. It's strange how alone you can feel even in a house full of stuff we bought together. I miss his hands on my body, his fingers digging into my hips when he, when we were moving. I've been trying to find comfort in other ways but it doesn't work. Last night, I just needed him back so badly that I took care of myself with a toy, imagining his size inside me. The way he would enter me slowly at first, then harder and faster later on. Filling me up completely until there was no space left for anything else. It felt empty after though. Sometimes I wonder if it's normal to still want him this badly even when we're not together anymore. Do you ever miss the way someone made love with you so much that it leaves a physical ache? Am I just crazy or is there something wrong with me for feeling like this?