-Met HB8.5, number closed
-Invited her to party, k-closed
-Had a date with her today
So here's the thing, the date went well and all, it liked her and she liked me. At the end of the date i asked her to "rate" the date from 1-10. She gave it a 8.5, pretty good id say. (I gave it a 8.4

)
Now here's the thing, she is friends with one of my friends and we ran into him. Then the next thing happens, they give each other
2 kisses on the cheek and 1 on the mouth.
After that i asked her what that was
Me: "So what kind of girl are you, you meet/date with me and then you kiss another guy on his mouth?"
Her: "Yeah me and him always do that, didn't you notice that at your party? "
Me: "No"
Her: "Its normal for us to do that, we always do it. I do it with almost all my friends Don't be jealous!"
Me: "I just think its "special", i am not the kind of guy that wants something like that in a girl, so i'm sorry this isn't going to work out that way then. We can still be friends"
I dropped the "we can still be friends" line because she is kind of part of our "Friend group" so yeah.
Then she went home and she talked to me on text, this conversation took place
Her: Hey
Me: Hey
Her: Thanks for the fun night! xx
Me: Yes it was fun indeed, to bad it ended in the way it did but too bad.
Her: Haha well.. your choice...
Her: But its no big deal, i kind of feel bummed out about it but whatever. Ill see you soon i guess x
Me: Yes, too bad. But this isn't something that i accept when i am seeing a girl, but no problem.
Her: Yes well thats your choice, there's always room to talk you know haha
Me: I am someone that knows what he wants and that is something that i dont want so i am sorry but there's no room for talking there
Her: Haha ok
Her: I am who i am. Have a fun evening and good night

Me: Goodnight
--
I kind of feel bummed out about this because the date itself went really well up until that point. But that she kisses other boys on the mouth is just something that i am not going to put up with.
Did i handle this situation correctly? Could i have done something different? Please let me know i am trying to improve myself.
Also; i am thinking of stepping to that friend of mine and telling him what he did was disrespectful towards me as a friend. Even if its a normal thing for them to do something like that, he shouldn't have done it out of respect towards me. Because she was with me. Agreed?
Also what is your opinion on the following: I pretend like i am fine with it (her kissing other boys) till the point where i fuck her, then after i fucked her i tell her that "i do that with all my friends" and "its normal" . ?
Thanks in advance for the advice guys, appreciate it.
Edit: just noticed she forgot her scarf at my place and its still here