A stupid but serious question

[matmq]

Would you say it's possible for a water monitor to build some kind of relationship with a cricket, because there was a house cricket that had been living in his tank for a few months that hadn't been eaten, then i put in a plate full off chopped chick and a few rat-pups and the cricket came out and began to feed on it, anyway next morning there was no food left and no sign of the cricket bar a leg and since then it hasn't eaten (5 days) I arn't overly concerned as since i have had it it has periodically fasted but hasn't done so for a while and has lately been eating me out of house and home.
cheers mat