Split on my long term partner recently and ended up leaving the relationship. While I was splitting I came across all the years of love letters I had stashed and impulsively threw them away. Now that I've come back to center(ish) and talks of working on the relationship are on the table I keep obsessively thinking about the letters. I feel extremely guilty about it, and I know I'll feel even more guilty if things work out and progress back into a relationship. I can't seem to get over it, I can logically try to convince myself that shit happens and new memories can be made and new letters can be written, but I'll never get those exact ones back. I'm super sad about it. Also ex SO/FP is a sentimental guy and I know he would be hurt and offended that I did that because they were an expression of his love. The thought of him knowing makes me feel even more guilty. Coping advice/perspective needed please.