Punto Pelota says the pair taunted eachother throughout the Copa del Rey semifinal first-leg, which had finished 1-1.
With the mixed zone leading out to the carpark, as Messi was making his way to the Barcelona team bus, he spotted Arbeloa in his car - with his wife - and again fired a couple of verbal volleys at the Real fullback.
Arbeloa hit back before Messi was led to the team bus by a Barca official.
Meanwhile, Real's locker room were unimpressed by Messi's behaviour during the match. At one stage, Messi, grounded after a tackle, ignored a helping hand offered by Xabi Alonso which angered Real's players.