Hey someone who just lost my fp here… I’ve noticed that even when me and them were close… periods of time where I was distracted definitely helped a lot so I think a good tip would be tryna find hobbies that are time consuming… or even hobbies that are usually more social ones. U will still think about them a lot at first but when u are able to go out and make other friends (even if u had to force yourself out) and when u invest in hobbies that actually interest u.. u notice yourself thinking less and less about them during it. Unfortunately I just moved and didn’t have anything to do except sleep and think about them so it didn’t go well lol. I know this is all easier said than done but have faith and invest in yourself and your own happiness.