Whenever I talk about the future and our relationship - she changes the topic, am I being used?

She is 44 and I am 34 and we dating since past 11 months - I want long term and want commitment. she always changes the topic and ignores my views which is building lot of frustration and i feel like exploding and telling her to fuck off if she doesn't see me in that way rather than using me,

Whenever I talk about the future and our relationship - she changes the topic, am I being used?
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