Does anyone have any advice to give about how to deal with envy?

When my gf and I met, she got three new gf's (all of which absolutely adore her) that were my friends that she probably never would have met if her and I hadn't connected.

I didn't get three new guy friends, let alone three new guy friends that think that I'm absolutely awesome.

I'm struggling with envy because I wish that I HAD gotten three new guy friends as a result of meeting her.

I've already realized that if her and I break up at some point, I will most likely lose those three friends of mine that I already knew before her and I met because I don't think that I could be just friends with her after we break up.

The worst part is the fact that those three women that now are very good friends of hers and absolutely adore and worship her, are more or less the only close friends that I have.
And I would lose them.

How do I deal with feelings of envy so that they no longer eat at me?
Her and I are still together and I'm ALREADY struggling with envy.

I'm happy for her that these friends of mine love and adore her so much, but it really doesn't help me feel any better.

Btw, she doesn't know that I feel this way.
I think that telling her that would be the worst thing that I could do.