This issue will never go away. You will not get used to it. She does not want to stop talking to her ex. And if you talk to her about it, she'll just think you're a territorial asshole and talk to him in secret. Telling you she's texting him does not make it any better. In fact, lots of women tell their partner they are meeting up with an ex before fucking them; it's easier to rationalize that way.

There's a fine line between being the cool, chill bf and being disrespected. The line is determined by how uncomfortable she knowingly and willingly makes you feel. If she feels like disrespecting you and the relationship by talking with her ex, then maybe she isn't a girl you want to call yours.

It's not an issue of jealousy, it's one of respect. Dump.

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"Let me ask you something. If the rule you followed brought you to this, of what use was the rule?"