I think you need to decide what it is that you want from the relationship and find out what she wants. And try to compromise. However if you are wanting something more, you need to express that sooner than later.

Usually someone who had a long term relationship and it failed isn’t looking for something serious. Even when they say otherwise. I’ve been married 10 years and I am a 40 year old woman and I can tell you if my marriage failed? I would not be interested in finding another serious relationship. But that is me projecting..

In general, the age difference here is worth noting. Often times, when someone dates someone who is significantly younger, it is possible that they are having some arrested emotional development. Not saying this is the case but it is something to consider if you are trying to examine her motives.

But ultimately, you should know it is ok for you to ask what the goal of the relationship is. Often times we waste time trying to guess what the other person wants. This is how resentment starts to build. Expectations are created that the other person cannot fulfill your expectations because they are not aware of them.