Is it normal that i dont have crushes anymore?

I used to have crushes on guys all the time in high school and in college but now, it's like someone turned the off button. I can't get the butterflies anymore and I feel like I'm not able to love anymore. I didn't have any major deception or whatever but I feel like I wanna focus more on myself and what I want to do personally than getting involved with someone else. It scares me a little bit because I would like to settle, that's what I always wanted but I dont understand why I stopped caring so much, I think I might be depressed...

(i precise that i am not attracted to women )