I wanna be pretty

I have been with my boyfriend now for a few months and it is going really well. We both really like each other and I feel safe with him. However I'm a very anxious, worrisome and insecure person so I'm always finding myself worrying if he's attracted to me, if he thinks I'm beautiful, if I'm pretty enough etc. And honestly, a good portion of this is just because I've never heard him say any of those words to me. He's never told me them or said them to me or even gave me like a look where his eyes said it for him if that makes any sense at all.

Earlier today, he was talking to a close mutual friend of ours. She asked how things were going with us and how he's feeling about me,, and he just started raving about me.. "She is so amazing. She has the kindest heart, and my god she is the prettiest sight in the world, she's just so beautiful". Shortly after, our friend comes to me and tells me all the wonderful things he said about me, and I can't explain it but I'm almost like, mad now. I just feel upset, because this whole time I've been stressing about him not finding me pretty because he's never told me so, and me thinking he's not attracted to me and he goes and tells everyone else how beautiful I am? But he can't tell it to me? It kinda hurts and pisses me off and I'm not sure why. If someone was that important to you and you really found them that beautiful, shouldn't you let them know that? Especially if you hadn't done so yet? Please someone help me here. Am I overreacting? Or is this how you have or would react if someone was doing this to you?? Why can't he show me and prove to me and tell me how he feels about me to my face and not to others. Isn't it normal for a woman to want to hear what her partner thinks of her? I think I'm going crazy stressing out about this.