Just three songs was hard but I think these would be perfect.
The first song is Tribute by Tenacious D.
https://www.youtube.com/embed/_lK4cX5xGiQ?feature=oembedThis is the anthem of my teens. My friends and I knew all the lurics, including the giberish, and we would belt this out together. Of course there are loads of other songs and bands of the time we loved but this was OUR song and it reminds me of all the great times.
My second is She f**king hates me by puddle of mudd.
https://www.youtube.com/embed/BYE4CVhVkhw?feature=oembedI was young, I was stupid and I married someone I shouldn't have. My wife (at the time) was abusive, she destroyed me mentally, emotionally and physically and no one cared or listened because I'm a man.
I went through absolute hell during this time of my life and nothing speaks of this more then "She f**king hates me". Thankfully the song doesn't make me think of my ex, rather to me this song is like sticking a middle finger up at my past and makes me greatful for what I have now.
Finally, If you love her by Forest Blakk.
https://www.youtube.com/embed/wDaiiluanQc?feature=oembedThis song came out of no where. Me and my now wife were looking for songs for our wedding reception and we found this, I dont think it had been out long and was still quite unknown. It just resinated with us and has become so meaningful.
For me now, this song makes me think of the person that found me at my lowest, loved me, saved me, showed me who I really am, the wonderful life we have built together and all we will do in the future.