Lets continue to Simple ideas for Marriage proposal #2, today i discover this ideas,
after i watch Spiderman Movie.

Maybe this idea too simple, but filled with romantic atmosphere ♥ : "an engagement ring out of the bottom of a champagne glass" do you remember this moment on spidey3

First booking "First Class" Restaurant or french Restaurant kind of. if possible (in outdoor restaurant)
on date 15-20 why? :) .
Invite Artist or guitar player (acoustic artist) and Request this songs :
Marry you by Bruno Mars

You Belong to Me by Jason Wade

or you can use your "our song"

after that, Speech like this (or you can make your own):
" Dear (her name), (we have been friends for so long .............................)I Love you so much, I Want to Spend the Rest of My Life with you, Would you Marry me......" said it softly, with full feeling, Say it from your Heart.......

Good luck