Advice!

So have y’all ever had a crush that was hitting on your friend? I posted my friend on social media a few months back and he slid up asking about her and honestly that hurt and now I’m so insecure about myself and jealous how she looks and wishing i had what she had. now every time I’m around her i think about that day and i get so jealous she’s beautiful and that’s my friend but i don’t wanna feel this way anymore. Anybody been through this and could tell me what i should do thanks!