If a guy introduces you to his family esp. to his mum(even hang out with his mum&family), would that mean he's that serious in your relationship and he won't easily fool around or let you go?

i'm in a long distance relationship and i still can't tell how secured i am in such rel.
hmmmmm...
actually, he's a seaman. i've been with& known him for only 1month then 6months na kami long distance rel. he introduced me to his family while he is away.
my problem also is we lack the communication kc mahal daw ang calls dun. sige nlng ko problema, kapraning, maguol--- my greatest fear is to be fooled around.
in other words, i don't think i'm happy anymore. i don't know if i should go on with our rel. hahay.

i've been praying a whole lot recently but i don't think God hears me. i'm just so confused & depressed on what to decide.