Single and happy

I have this friend (in tagalog, meron akong friend, sound family?), he likes this lady, I think my friend is in love with her (he's just denying it for reasons I don't know). She's nice and pretty. It will take forever to talk about the many wonderful things about her

They only hanged out together only a number of times, in activities she really enjoys (he enjoys it too, not only because she's there), they've never gone out on a date, every time he asks her she declines.

When he had the chance to tell her that he likes her, she told him "I'm happy being single, I've been like this for years now, maybe I'm waiting for the right person". She further added "i hope this will not change anything and we'll still be friends.. you'll never know right?"

My friend of course who is "close" to being in love, analyzed everything. He arrived at a conclusion that, "hey! I do have a chance right?". I said "wait?" let's analyze things further

She is happy being single. I've always thought that to complete us, we need someone to complement us. A lot of struggle to find the right person to be in a relationship with to be happy and here you have someone happy being single. How many of us can say "I'm happy"?

In relation to what I stated above, if she's happy being single, how can you convince her that she will be happier in a relationship (with you my friend)? I think that will be difficult

Also, a Brod told me, if a girl likes you, then she would have changed her mind about the whole thing right?

And so my dear friend, you're the one who said that more or less you know where you stand, just don't burn your bridges and be a friend. Remember, it was her who said "you'll never know"