<human>: So, we've known each other for six months - dating for four months and were talking for two months before that. She told me she is still friends with her big ex, and I was fine with that, as I'm friends with my big ex still. I asked, and she told me that she didn't have feelings feelings for him anymore. When you spend four or five years with someone, they'll probably always be a part of your life, and it's good if you can salvage a friendship from a failed relationship, in my opinion.

But, the problem comes with the fact that she is facebook chatting with him literally everyday. Not all day long, mind you, but a day I spend with her doesn't go by where they don't exchange at least a couple messages.

A few weeks ago she pulled out her laptop to show me something and she still had her facebook inbox up. She closed out of it, but not before I caught a glimpse of the last message she had sent to her ex, which read "Love you babe <3", heart and all. I decided to not say anything unless I found another reason to be doubtful.

Yesterday, same situation, but this time the last message was from her ex, and it read "I blame it on your perfect body." I'm not sure what exactly the context is or what it is he blames on her body, but it's almost definitely flirtatious.

So, on to my questions:

Is this kind of communication with an ex acceptable while you're in a committed relationship with someone else? I would never speak to my ex that way, especially not while in a relationship. I don't expect to compare to someone she was with for 5 years, but I feel disappointed and worried by this. Especially since these are just the couple I caught. What else are they saying that I don't see?

And, how should I go about talking to her about this?

I'm really falling for her, and I want the relationship to go somewhere, but I don't want to continue it if she doesn't feel the same way.

Can you give me the gist of the text in a nutshell?
<bot>: Caught a few messages between gf and her ex that seem like more than "just friendly" texts and I don't know how to proceed.