So last week , I've helped my friend in closing a set of 2 girls in a [/list]club.
We managed to do light kino(hugging, waist holding all accepted), K-closed, number closed.

Proceed to exchange texts for a couple of days.

managed to meet up again the following week at a club.
(In the club, she initiated kino)
Same thing follows but the 2 girls had to left early so we gave em a hug and a kiss before saying good bye.

the following day no texts exchanges out of a sudden.
(he initiated the texts first but no replies afterwards)

So my friend's going nuts about it think he has fallen for her or something.

any tips?

WHAT DID HE TEXT HER?

If he met her the second time, at this club, and didn't do anything to escalate things sexually, then she probably got bored of him and moved on to a better option. Tell your friend to cut his losses, do NOT text her again, move on to the next girl. Chalk it up to experience and move on. Plenty more out there.