| Generally I feel "Promise Rings" are honestly, a bit stupid. "I promise that maybe sometime in the future, I might promise to marry you."
That being said, I'd look at it more as the traditional "Being pinned" or wearing his class ring. It's just a symbol of their "love". Either they'll be committed to each other and end up with an engagement and then marriage, or they'll call it quits later.
Nothing you say or do will change it either way. May as well just go with the flow and be happy she's found one person she feels she can rely on and be committed to, for however long. |