It was completely illogical for Raghav to say Pallavi os after his money. And it is OOC for him considering he's a perfect example of rags to riches. And he married her forcefully so that point is moot. Maybe he might have let that slip in the heat of the moment trying to hurt her. It was a dirty move but we keep on saying things which we know would hurt the other person all the time in relationships. ITV just makes it a big deal.
Gosh! If I start taking all what my loved ones say in a fit of temper seriously then my personal life will become the Atacama desert in the middle of an apocalypse. 
Note that I am not justifying Raghav. The words were mean and spat to hurt so I am all for him running behind Pallavi apologizing but separation because of that will be too much seriously. And frankly speaking in real life, business men always have underhand dealings as such.. tax evasions and custom duties cut off are very normal. I am really not very keen on seeing Raghav realising his apparant 'wrong ways' and turning over a new leaf.
Like I said in a post before, love can change your certain nuances, your personal shortcomings and such. Love is not a battle axe or a sledgehammer that it can hack your entire personality and just create a paradigm shift. Raghav can learn to be less impulsive, more patient, control his infamous temper and mellow down his super abrasive tongue. Pallavi's love can soften him at the edges a bit. But it shouldn't completely flip him over.
If makers think that they are doing a pretty good job of turning this love story into a rehabilitation project for badly raised men, then sorry people.. its not working. You will destroy your own show.
Period.