First question's pretty parental, you didn't sign anything did you? If you did, what I'd do is check the document for what your rights are concerning projects not of interest to the agent. Seek clarification if vague and see what agreements can be made.
Next question would surround trust and rapport. Do you trust this person to represent your interests, do they have and offer experience and input you have faith in?
Recent posts here have been about open calls for manuscripts by big houses.
As I stated, I have no expertise in such matters, but folks here have posted links to a great place that might help you find more qualified information, in case you're not already familiar with it.
<
http://blog.nathanbransford.com/>
If the answer you seek isn't there, it might provide a lead on who might have one.
Take care and good luck.