You seem to be a very sensitive and tender guy.
If her actions and body language tell you she's emotionally available, the words will come in time.
But if she can't express how she feels about you, you are setting yourself up for a world of hurt.
If you're ok with giving and never getting, it's not an issue. Some of us a little more selfish than that though.
I know all too well.
15 years.
Good luck.
Just don't ignore your instincts, like some of us did.