Should i go back out with my first kizz?

So I waz goin out with thi boy an he waz my frist kizz an ni friends told mi he waz getin cuter I told he stop bein a ***** an like mi an hym stayed to gether 4 3 an 1 /2 years but I brok up with hym cuz I hear he waz goin out with mi friend an so I said bye bye an he is like obsesed with mi an tell this day he stell talks about me an stll ask about mi an whn I brock up with hym ih find out its waz a lie.DO U THINK ITS A GOOD I DEAI 4 MI TO GO BACK OUT WITH HIM OR TO MAKE HIM SUFFER SUM MORE OR TO MAKE HIM FEEL SAD BT. I love hym stllllll. Should I go back out wti him