Why do we love our babies so MUCH ? / 2nd Birthday Emotions

My son is turning 2 on the 26th and I’m not sure why this birthday has me so much more emotional than the first ?! Perhaps it’s the fact that we interact and connect on a whole other level now. His personality, his heart, his eyes, his voice.. everything about him is just so perfect to me. He’s the sweetest boy I’ve ever ever ever met. EVER. 🥲 When I get dressed up he immediately hugs me and plays with my dress. I know he can’t say many words but perhaps he must look at me and think “mommy looks beautiful” when inside I’m such an insecure person. I never really think I’m the best fit to raise him but I wouldn’t imagine any one else doing it in my place bc I just want to be there and see every milestone, every moment bc I just love him that much. Is that odd ? I’m sorry if I went in a whole other direction but, I’m so emotional he’s growing so fast and we connect so beautifully, I love my baby boy! Please share how you’re feeling this year and just why do we love these kiddos soo much ?