TL;DR: encountered my ex at a wedding, now I can barely stop thinking about her, even though I'm in a happy relationship and my ex is married.
Hi everyone,
I'm hoping to get some advice from you guys over here. Some time ago I went to wedding of a friend of mine. He was getting married to the little sister of my ex gf (separated some 13 years ago). So of course my ex gf was there as well.
Since then, I can barely stop thinking of my ex and I'm not sure what to do. I'm in a happy relationship right now of over 8 years while she is married with a little kid.
My ex was my first love when I was 18, but unfortunately she left me after about 20 months. She said she wasn't in love anymore. We h

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