Year 12s: what will be the first way you research your future options? >>

ADVICE Needed please.

So,

I have been going out with my girlfriend for just over two weeks, the relationship itself is perfect.

The problem I have is this ex sexual partner of my current girlfriend, who has a girlfriend, he has constantly being trying it on via Facebook/text asking her to meet up and strip via webcam etc.

The bloke I have a problem with due to this. She has not really replied to his comments just generally convo but I have noticed he asks about our sex life. (strange)
The bloke himself is a cocky little **** really and thinks he can treat women as he pleases.

Now what do I do in this situation... As personally I won't stand for someone whoever it is thinking they have a right to do so especially as he knows who I am and knows we are in a relationship.

I have personally narrowed it down to three options..

Either focus my mind to it and hammer the bloke.

Completely ignore it for now and if I see him out and about either talking or making a pass at her then just go for him.

Or do i completely ignore it all together?

Or take advice on anyone who can lighten the situation and offer a better solution.

Thanks.