Tell your boyfriend to bugger off. He's too lazy to even ask for opinions for himself he is in no way ready to properly care for an animal of any type.

He wants a monitor or tegu, yet doesn't want a beardie 'cause he doesn't like crickets? Both baby monitors and tegus eat crickets while they're tiny (not for long, lol), and they'll chomp down way more than any beardie will...

Here's a perspective for you, cost wise. My Ornate monitor ate in the first two years of his life, the same amount of rats a pair of ball pythons would eat in 14 years, if they ate weekly and never missed a meal. Something to consider...

Chris