Feeling uncomfortable with realtor. What to do?

[Mark Mo]

Hi BP, 

First time home buyer here so pardon me if this is stupid. A little backstory here, we interviewed a handful of realtors with the same amount of experience, education, etc. but chose this person due to the fact that they were extremely easy to talk to. Fast forward, we found a house we were interested in that's been on the market for 120+ days and the realtor got us a showing. The realtor informed us that the seller was desperate to get it off the market because it's been sitting with no offers and let it slipped that the realtor knew them (the builder/seller) personally. 

After expressing some interest in the price point, the realtor called us the next day informing us that the seller received an offer at the listing price. We put in our offer. 2 days later, we got a call and informed us of another offer the seller received at 10K more the listing price. Forgive me if I am acting on my emotions, but Im finding it very difficult to believe the coincidence that right after we saw the property, they received multiple offers.

Maybe I should trust my realtor? They are the professional after-all. Or is this some inside job because of the conflict of interest?

Please give me your thoughts. Thank you.