Lost friendship

I remember the days when we used to walk together and talk about everything also when i was feeling low you always got me back on my feet but now i know that u only need me as your friend i begin to understand that u have a girlfriend and i can't be in the middle i want you to know that i really miss u every day i see you with her but then again i never told you how i felt because i thought you would not have the same feelings but my guess is right.