boyfriend told his best friend that if we broke up he wouldn't care and just move on?

by Lexii
(Alpine )

me my boyfriend have been going out for about 4 months now and sometimes it feels like he dont care, like when we are around his friends. he has told me he loves me and he does tell me im his one and only and a lot more stuff like that, but one of his best friends told my sister that he said (if who ever i love breaks up with me, i wont care and ill just move on and forget bout them.) and i dont know when he told him that.

my boyfriend does tell me that he didnt care for girls in the past. but i dont know if ill just end up with a broken heart and he wont care. =\ thank you for reading....Help Me Plz