Is it normal that i really really really love my dog?

My family was given a puppy that my mother surprisingly let us keep, especially after all the bad experiences we've had with pets. My siblings cooed all over the pup, but I kept my distance because all my bad experiences won't let me get attached to animal anymore. Unsurprisingly though, my siblings would forget to take care of him and my brothers liked to bother him, so I ended being the one to do it, being the older sibling. One day I left the puppy in someone's arms and started walking away, but the minute I did, he started bawling, yammering like a monkey, and trying to escape so he could go after me. Ever since then he's followed me everywhere, slept with me, and taken showers with me. Everytime he clawed at my leg, I would pick him up and hold him like a baby. Though it is a bit annoying at times, I've absolutely fallen in love my dog. I'm a grown girl and I find myself chasing him around the house and on my knees playing with him all the time. I'm always making sure he's safe and comfortable (going out of my way to do it). I freak out when my brother takes too long walking him. I left a toddler alone once on the street to catch my runaway dog (an action I never did again, I'm not that far gone!). I always find myself holding him like a baby. I knooow I've spoiled him rotten with love, especially since I'm always roaring like a lioness whenever I hear him squeal and I find my brother bothering him. I find myself cooing over everything he does, even if he's 2 years old now. I can't stop myself from talking about him as one of my main topics. I still think he's freaking adorable and I've taken him nearly everywhere I can with me (like TJ max, hobby lobby, hotels, furniture stores, malls, several states, mexico, and many other places).
The thing is, I've never been the type of person to get emotionally attached to anything in my life (I didn't even like dolls when I was a kid). I've had two dogs before him: one was taken by the police and the other only lasted a week; several others met a similar demise (for example: our rescued-3-legged turtle ran away, our cockatiel flew into the dryer, and my fish was accidentally fried). I'm so afraid of losing pets that I never wanted another one, so why is that I'm treating this dog (cute, adorable, maltese/shitzu dog) like it were my own child?? I've always disliked people that made such a fuss over their dogs!
Just to make things clear, no, I'm not the kind of person that buys expensive toys and treats for my dog. I've only bought him clothes because he nearly freezes in the winter (I prefer him without dog clothes anyways), and I discipline with a lot because I want him to be a well behaved dog, especially since little kids like to grab him.
But hey, it's not just me who loves him, everyone he meets falls in love with him, because he's so cute! It's like he knows exactly what to do, like jump around on 2 little legs and do a little dance, so automatically do his little play stance with his butt in the air and playfully growl. Everything he does is adorable, he's even grabbed a toddler's pant leg and torn his head back and forth sending the toddler to the ground, and everyone (including the mother) laughed and cooed over him.
Maybe it's not me, maybe it's that this dog is too freakin' adorable for his own good...