can i sue for half of truck bought for b-day present then taken back truck

TRUCK WAS BOUGHT FOR B-DAY 2012, I COSIGNED ON LOAN BILL OF SALE AND TITLE BUT I NOT KNOWING HE CHECKED A SMALL BOX THAT HAD OR ON THE TITLE SO AFTER WE BROKE UP HE SHOWED UP AT MY DOOR WITH POLICE TO REPOSESS THE TRUCK. IWOULDNT GIVE THEM MY SET OF KEYS, THEY TOOK THE TRUCK A YEAR AFTER GIVING IT TO ME AND CHANGED THE TITLE TO HIS SON I DIDNT THINK HE COULD DO THIS I HAD JUST FILLED UP THE GAS TANK I PAID THE INSURANCE ON IT I PUT IN A REMOTE START THINKING IT WAS MINE. SO 2 DAYS LATER I TOOK BACK THE TRUCK AND TRIED TO PULL OUT THE REMOTE START, HE HAD ME ARRESTED FOR DRIVING WITHOUT CONSENT OF OWNER, I PLED TO DEFERRED SENTENCE ON MY COURT APPOINTED ATTOURNEY SUGESTION. WHY IS THERE A AND OR OR BOX ON TITLE, IS IT JUST TO TRICK SOMEONE LIKE ME. I CANT FIND ANSWERS TO THIS QUESTION. WHEN I APPLY FOR A JOB AND THEY DO A BACKROOD CHECK THIS COMES UP. WE WERE A COUPLE FOR OVER 6 YEARS, IS THERE ANY RECOURSE