[joeysteele]

Dan has been saying thinmgs as to Dexter from the very start of the series, Dexter is well aware what Dan has said and also as to reservations about him from week one and he even said he understood them especially when Dan nominated him face to face with his reasons.

If there is one person Dan hasn't worked out yet is Dexter, he has always said he cannot be sure who the real Dexter is but ''he would really like to find out''.
There is the telling statement.

Dexter is fully aware of all that,nothing Dan says is likely to surprise or not already be known by Dexter and it is clear both have a reserved respect for each other.
They may eventually even become the closest in there.

However,if anyone is the turncoat then it is Callum, who has been bad mouthing Dexter for at least the last week now and it nearly seems to be the only conversation he has with Sam lately as to putting Dexter down.

It is amazing how Dan gets hammered for talking about Dexter,when he has been doing so near all the series so far but Callum gets let off virtually completely.
Callum is just furious with Dexter for any perceived interest in Charlie and the fact that Jackie even indicated she had warmed to Dexter but not Callum.

Callum is the one really sowing the seeds against Dexter now, Dexter already knew Dan had and still has concerns as to him as I think Dexter has too as to Dan but they are both really intrigued as to each other and that makes excellent viewing to me anyway.