Relationship Getting too.. Comfortable ?

Hi everyone I know that in a relationship you eventually get pretty comfortable and used to each other doing even gross things.. farting, pooping in front of each other etc... but recently I’ve felt like I’m not as attractive to my man as I used to be.. I’ve gained some weight since then, but he does love my thighs and bigger butt and bigger boobs but I feel like maybe that might be one of the reasons? It isn’t HIS fault making me feel less attractive or anything but more of me thinking it to myself. I feel like we love each other for sure.. but I just re read old letters and notes and I feel like we were MORE in love back then.. but then again that’s the “honey moon in love stage” (we aren’t married yet, that’s just what I’m referring to it as)

My question to you all is.. did you ever go through a stage of maybe feeling too comfortable or not as attractive to your man as you used to be?