"I want to grow old with you..."

^_^

if, during a conversation, a guy says this to his girl-friend, does it mean that he is

a) serious about the relationship?

b) just being playful and suggestive?

c) hinting that he wants a future with his girlfriend?

is this a good thing for him to be saying to her? :) what are your views on this and how would you react to such a statement?

<3
"I want to grow old with you..."
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