IN a new relationship, he says i love you....kinda jokingly i said "lord I am tired do not break my heart" he said "i'll try not to." and he DOE

when your man says "I will try not to break YOUR heart??" OR STUFF LIKE "I'D RUN IF I WERE YOU." HE TELLS ME HE LOVES ME BUT.......I AM REALLY STARTING TO THINK HE IS FULL OF IT. ONE MINUTE HE ONLY DATED A GIRL FOR A COUPLE MONTHS THEN HE TURNS AROUND AND SAYS THEY WERE TOGETHER FOR 2 YEARS AND LIVED TOGETHER???