My best friend is dating my brother?

[Anonymous]

My best friend is dating my brother. We were friends first , then they started dating is it rude of me to be upset that they didn't ask if i was ok with it?
She invites me to third wheel and it makes me uncomfortable but i do it anyway. But if i go she just walks away from me and I'm kind of just chillin on the swing or something
Anyways, this guy i had been talking to for a while well i had a crush on him, and she asked him if he liked me and he was like i mean yeah but more as a friend
and then she tells him well she likes you and she wants to be more than friends , can you ask her out like it would help me out cause she seems like lonley when she hangs out with me and *my brother*
Its just the way i see it why the f is she inviting me if she feels like that
Then the guy does ask me out and i was like yeah sure so we're dating now but my brother can't really talk to her cause he doesn't have his phone so she'll call me and my boyfriend and just ask us like all sorts of these inappropriate questions like have you guys kissed? or have you guys done it?
I just feel like its not her place but how do i say that nice? And do i straight up just ask my boyfriend like I just dont know

[Twalli]

She probably asked you as a third wheel to be nice. Besides maybe your boyfriend didn't want to try to get to know you as more than a friend, but figured to take his shot on your friend suggested it. Now he's your boyfriend, which is what you wanted. Also she should have asked you, or your brother should have. Yet that didn't happen and if they're happy together you should be glad for them.

[Adam1978]

It's not your thing to decide, who your brother or friend dates, so they don't need to ask for permission. And your friend snooping is just a girl thing she learned from tv. Go along with it or keep silent, the later is probably best because you probably don't want to hear about her sex life with your brother.

[Birdlegs]

Honestly it’s a very awkward situation it’s not necessarily wrong or anything your friend just seems a little “out of the loop” but it seems she has your best interest at heart

[Pyrofox]

I'd say just let it go. XD At least she hasn't like tried to hook u up like with her own brother if she has one XD. It would be a lot weirder if she like said I want us to be family and besties XD.