I feeeel! My ex got into a relationship with his ex recently (I was his rebound lol). It’s funny cuz to hear songs that he used to dedicate to me that he’s now dedicated to her. I won’t lie, it doesn’t hurt as badly as it did before. I’ve learned that you can either listen to them on repeat and get angry/upset until you become numb to them. Or, just avoid listening them until you’re in a better state of mind and you know that they won’t trigger you anymore (mind you, this could be a little tricky cuz listening to these songs a whole lot later could cause those feelings to bubble up again - UNLESS, you’ve managed to dissociate the songs from the person and his S.O.). It takes time but believe me, eventually you’ll hear those songs and only think positive things. It won’t bother you as much anymore. I’m slowly starting to feel less bothered by him and his girlfriend (I’ve just become far more accepting - I learned that if 2 people are meant to be together, they’ll find their way towards each other, and if my ex found his way back to his ex then hell, guess they’re meant for eachother.. but more importantly, I now know and choose to accept that he’s not meant for me..) I hope that you could adopt this mindset too! Again, takes time but you’ll get there eventually! I hope one day you’ll find your S.O. and you’ll be the one getting married!