Hello, I am Rafael. Thanks for asking your question - I'm here to support you. (Information posted here is not private or confidential but public).
I am glad to know you feel this interested about this person and would like to be a special presence in her life/
The first aspect I'd invite you to consider here is to be truly yourself, honest and open, that way this person would have an opportunity to start knowing you, and both would know how well you could match each others' personality, worldviews, value and belief systems, learning from direct sharing about your core needs and expectations, in order for you to know how compatible they happen to be.
For a healthy and fulfilling romantic relationship to develop, both persons need to be honest and open, share same core aspects in previous areas, from values to expectations, compatible personalities and life styles. One feeling deep affection or passion without the other experiencing the same, would not allow a healthy and fulfilling relationship to develop.
This seems like a nice interaction, but it could be something relevant or not depending on how real each of you happen to be. There is no way to find out and measure how interested a person may be based on a few messages, it;s rather a matter of consistency, what the pattern of communication and sharing at different levels show, and if these are unique, special or part of the person's personality, being that way with other people too.
Do you feel this person consistently shows she likes you through her behaviors at different settings, times and circumstances to the point you and other people could easily see she likes you and enjoy your company more than what she shares with other people?
If she does then it'd be obvious she is interested, but if you have to push interactions, and what is said and shared does not feel spontaneous and real, then perhaps it could show you enjoy somethings together but not to the point necessary to build this special relationship together.
Then that's what I mean. Always assess the patterns, the whole picture, how consistently her behavior happens to be. A person truly interested would not totally dismiss you that way most of the time, unless presenting issues or tendencies justifying in her head approaching sharing that ways, which does not seem to be a mature or assertive approach for sure if she truly happens to be interested.
I would not say that you would need to look for subtle things from a person, when the obvious real, concrete behaviors do totally disregard your prey presence, since sometimes she does not talk to you at all.
Many people could "play" such strategy but it does not use to be a very mature approach. Before speculating about a person's feeling, I always recommend taking into account the real, concrete behaviors such person shows at different times and circumstances, to find out what she thinks, feels, wants and prefers.
Well, there you have it. If she alienates you that way she is showing you right there much about her personality and level of interest, and you need to remind yourself about that in order to keep things real and take good care of yourself, otherwise you could fuel unrealistic expectations about this person and what you may or may not share.
Talking to you being this friendly is a concrete behavior, as it is to totally dismiss or alienate you.
When you truly care about somebody, you would not dismiss, even less alienate that person, since such behaviors are incompatible with those coming from a person who truly respects, cares and likes you.
Then please always remind yourself what reality shows you, adjusting your expectations to it, in that way you would not self-sabotage nor expose to any form of unhealthy dynamic with people.
If what you want is to feel truly good in a mature relationship, to be able to build it with another person, then first you need to ask yourself if the person really respects you, is sensitive about your feelings, cares about what you feel, think and say, shows reciprocity through her behaviors around feelings, initiatives, effort, investing in working on creating a closer relationship or not.
That seems to match reality based on the behaviors-scenarios you described/
It is necessary for you to be realistic, adjusting your expectation to it,otherwise you could get very frustrated and expose to hurtful and unhealthy situations out of expectations not based on what concrete reality shows you.
You're very welcome. Thank you for your trust. Be always honest and truthful with yourself, in that way you would take good care of yourself, life and relationships, without adding extra unnecessary pain to it, but learning in the process, being very aware of what you really want to afford or not in each situation.
Always be yourself, open, honest, real. If being this way does not attract certain people, no problem, since you would not just be playing a role. Those who truly happen to respect, like and care about you, feeling compatibility and attraction to the real you, would show it in their actions,with differences for sure, depending on how introvert - extrovert they happen to be, but it's their actions in time and at different settings and circumstances what would show you about what they think, feel, want and are willing to share or not.