It all depends on the maturity of the feeder. Too big isn't a thing for most of us, you'll just get to the point where you're not willing to support or take care of the feedee anymore. Everyone has their limits. If you can respect those limits and see the Feedee as an actual person instead of a toy or a prize, there might be some hope for you.
Most feeders can't do this, they are just dogs chasing cars. Only interested in the gaining process, once that stops, they lose interest and will get anxious to start over with someone else. Not interested in people, just results.
Feedees, make sure you're happy with this before getting started and not just looking for attention from someone else, the chances of being abandoned are high.
Be careful who you interact with no matter how charming or into you they might appear.
2 years