What does his ' I love you' mean ?

action speek louder then words. if he really "loved" you wether it was a friendly love or romantic love he would treat you with at least a basic repect. not to be cold but it sounds to me like you are his backup girl. that means this guy is afraid of being along so he contantly leads on women never puting true efort to any one women. the i love you bit is just a selfish trick to keep your attention. well my advice to you is to dump his *** and fine a real man not some scared little boy