Advice for a junior developer

Not sure if this is the right sub for this question, but I’m currently a junior developer with one year of dev experience and about 8 years of accounting experience. I’m new to development but not to the professional workforce.

I’m having a bit of an issue with the senior dev on my team, who just so happened to be my trainer. I always felt loyalty to this dev because he spoke very highly of me to my managers and I think that helped contribute to their positive perspective of me today. Mentioning this because it’s a potential bias.

Anyway, I’m an independent learner. I learn by doing things, not through being taught per se. My senior dev learns from being taught. We recently inherited a new CMS from a team we laid off, and we’re all learning it. I’ve put in a lot of time to learn this technology, and I’m doing fairly well with it. My senior dev sees this, and is now constantly pulling me into calls asking me questions about the CMS that I’ve taken a ton of my own personal time to learn. I understand we’re all a team and we should share our knowledge, but at what point do I say enough? It’s gotten to the point where he wants wants to work through an analysis task with me that he’s been assigned. I’ve been getting calls from his every day asking me questions about this analysis task.

Is my senior dev taking advantage of me under the guise of “sharing our knowledge,” and “teamwork”?