I need help on myspace please help???

WELL I NEED TO KNOW THE CODE TO UNDERLINE THINGS,THE CODE TO PUT HEARTS,AND THIS IS SERIOUS I NEED A LITTLE QUOTE OR SAYING IN MY HEADLINE WELL I WANT IT TO DEAL WITH ME AND MY BOYFRIEND OR WHAT I THINK OF HIM BECAUSE I CAN'T REALLY EXPLAIN IT SOMEBODY HELP OR GIVE ME SOME EXAMPLES.