If he's okay with it, then there's nothing wrong with it. That is to say - some men can be in love and accept that the woman doesn't love them in return....but...that's some men - if I had to guess, I'd say a significant majority can't accept such.
I would say the difference between the two types of men (above) is a result of self-esteem, self-assurance, and outlook on life (personal beliefs can really affect the outcome, irrespective of self-esteem etc).
And now things seem so wrong.
Why are they so wrong now?
But my life would have been a lot better if he had not said anything.
Why would it have been better?
I'm not trying to be facetious - I know what the normal reason for such statements. The reason I ask is that because, currently your viewpoint is purely one of your own perception/anxieties/fears, rather than reality...
...There are other ways to look at this situation, and it starts by seeing your friend for who he is really is. After seeing who he really is, then you can decide whether or not the current arrange will still work for the two of you.
All that said...I think my above viewpoint may be a bit unusual.
Hope it helps some.