オーストラリアの友達に彼女ができたと聞きました。祝福する気持ちの反面、残念な気持ちを伝えたい。

Dear XXX,

Thank you for your email and thank you for telling me about your girlfriend.  She looks really cute. I am sure she will be the best partner for you.

However, I feel a little envious of her. To tell the truth, you are my type and I wished I could be the best partner for you. But I know that my English communication skill is not quite good enough. So I would like to wish you a good luck with her. I hope we can still be friends forever.

Best wishes,
[your name]