CAN SOMEONE VERBALLY AULT YOU THRU A TEXT?

THERE IS THIS GUY THAT USED TO DELIVER NEWSPAPERS TO MY JOB. HE STARTED I GUESS LIKING ME AND WANTED TO BE MORE THAN FRIENDS BUT IM HAPPILY MARRIED SO I NEVER LED HIM INTO THINING ANYTHING DIFFERENT. WELL HE COMES BY MY JOB AND TELLS ME IF WE CAN GO INTO A ROOM TO DO :STUFF". I LAUGHED IT OFF "UNCOMFORTABLY" AND SAID NO. HE THEN LEFT AND SENT ME A TEXT MESSAGE SAYING THAT I NEED TO GET A LIFE ANF FIND SOMEONE ELSE TO PLAY GAMES WITH AND I NEED TO GROW UP. NOW MIND U HE IS IN HIS EARLY 30'S . IM 8 YRS YOUNGER THAN HIM. AND HE STARTS CALLING ME THE "B" WORD (FEMALE DOG) TELLING ME IM FAT.. I LOOK LIKE HUMPTY DUMPTY AND IVE IGNORED ALL HIS TEXT MESSAGES BUT HE JUST KEEPS ON... WHAT SHOULD I DO?