30M in a relationship with 48F. She hesitates when marriage comes up. How do I help her feel secure about our future?

I'm a 30-year-old man, and I've been in a relationship with a 48-year-old woman for a while now. We met through a mutual connection at an event and just clicked. One coffee became two, two became dinners, and now we spend almost every day together.

She never married. She built her life alone. She's strong, gentle, and present. She takes care of me in ways I didn't know I needed. She's my peace.

But whenever marriage or a long-term future comes up, she hesitates. She doesn't say no—she says "not yet" or "let's wait." She looks scared. I can see it in her eyes.

I know her fears:

· She's afraid I'll leave her for a younger woman.

· She's afraid people will judge us (age gap, society, friends, family).

· She's afraid I don't really love her—that this is just a phase.

· She's afraid of what her friends and family will say.

I don't want to pressure her. I just want to show her that my love is real. That I'm not going anywhere. That I choose her—not her age, not anything else—just her.

What can I do to address her fears and help her feel safe enough to go deeper with me?

TL;DR: I'm 30. She's 48. We love each other but she's scared of the age gap, judgment, and me leaving. How do I address her fears without pressuring her?