I have been going out with a girl "officially" for a few months, but we have been seeing each other since the Summer. When we first got together, it was a few weeks after her and her ex-boyfriend had a fairly messy break up. 
They had been gong out for a around 3 years, and obviously she still cares about him, and he is close to her family etc., but she tells me that she has no feelings for him in a romantic way. The only times I have seen her upset for example, is when talking about him.
She is now studying abroad, and over the past few weeks, she has been commenting on his facebook etc., saying that they should meet up when she is home for Christmas. 
I am wondering if I am being the archetypal jealous boyfriend by getting worried about this, is it normal that they try and stay friends and meet up etc? Or should I be worried that she still has feelings for this guy?

I don't want to say anything to her, because inevitably, I will come across as being jealous, leading to a fight, which I don't want to happen. I really love this girl.
Any advice is very much appreciated.
user
girlfriend talks to her ex boyfriend to meet up when she is abroad. Should I
assistant
I have been going out with a girl "officially" for a few months, but we have been seeing each other since the Summer. When we first got together, it was a few weeks after her and her ex-boyfriend had a fairly messy break up. 
They had been gong out for a around 3 years, and obviously she still cares about him, and he is close to her family etc., but she tells me that she has no feelings for him in a romantic way. The only times I have seen her upset for example, is when talking about him.
She is now studying abroad, and over the past few weeks, she has been commenting on his facebook etc., saying that they should meet up when she is home for Christmas. 
I am wondering if I am being the archetypal jealous boyfriend by getting worried about this, is it normal that they try and stay friends and meet up etc? Or should I be worried that she still has feelings for this guy?

I don't want to say anything to her, because inevitably, I will come across as being jealous, leading to a fight, which I don't want to happen. I really love this girl.
Any advice is very much appreciated.
user
My GF is interested in another guy, but still has feelings for her ex boyfriend.
assistant