I'm jelous!

I will simplify this.
On my Facebook news feed I saw that my boyfriend "became friends" with some unknown girl.
I click on that girl and DAYUM she's so hot. I only had 3 mutual friends with that girl.
The jelous girl friend senses started tingling as well as many questions.
Who friended who?
Who is she?
How did you two met?
Why? Why? Why?
Should I question him about that? Or is that too crazy of me? Seriously that girl is hawt! Yes im insecure 😟