Was this a sign i was falling out of love?

My (ex) bf and I broke up about 1.5 months ago and I was just reflecting on the relationship a bit and I thought about this:

We were together for 4.5 years and for 4 of those years I thought he was so handsome and attractive and I loved all his “flaws” or all the things he was insecure about. Ive heard that when you love someone, they become more attractive to you.

The last few months we were arguing a lot and we were on and off (breaking up and back together) I think I knew I wanted to break up during those months but was afraid of life alone.

While I was reflecting, I remember in those last few months, I wasn’t as attracted to him. I thought he was cute but his flaws started appearing stronger to me. I’m not saying he’s ugly or I’m that shallow, but I’m saying that I think I was less physically attracted to him the last few months. Was this a sign that I was already starting to fall out of love?

I don’t love him like that anymore which is crazy bc it’s only been one and a half months. I still love him as a friend but that’s it