I think i'm lovesick

I can't believe this is happening to me and me actually making this post.....i finished heated rivalry and the long game two days ago and i think i've been lovesick ever since. Dizzy, stomach in knots, obsessively thinking about the show, rereading favourite chapters, now finding fanfiction!!! Will this kill me?? I've been in a happy, healthy relationship to a beautiful man for 17 years who i still love.....but these characters have made me sick! I feel like i'm cheating on my partner hahaha.....i havent dared told him. Has anyone else suffered or is it just this lovesick fool.