<human>: Could you distill the essence of the text into 1-3 sentences?

I've met this girl at work and we've been friends since day one (about 1.5 years ago). There has always been playful flirting from the beginning but just recently we got an influx of work where we are direct partners. Things got a little bit more aggressive in terms of flirting and opening up about our feelings for each other. I like her a lot and she likes me too. I've put in a lot of effort to show my seriousness about each other, but she still considers the age a big deal breaker. She told me if only I were a little older because she's looking for candidates for possible marriage and children. 

I can't say that I am 100% for marriage and children right now but I wouldn't be against it with her. I'm not sure what else I can do to make her give me a chance.
<bot>: Coworker has mutual feelings for each other but won't consider me as a serious dating type due to younger age.