<human>: Give me a shortened version of the text

So first things first. I'm not a jealous guy and I don't care if she hangs out with exes. She's met a few for lunch or coffee since we've been dating. Problem is I feel like she will bail on me to hangout with him before he moves out of town next weekend. She said we could meet him but then wasn't sure because he had a problem and gives her shit when she dates white guys. She said she doesn't want him to feel weird if I go. I'm white she's white, he's black. Based on what she says he clearly dislikes me even though he hasn't met me. Now it's not the fact that she's meeting with an ex that bothers me. It's the fact that if she does this time I would be disappointed that she is bailing on our weekend time together to see an ex. Especially since she is leaving that sunday for work and we won't see each other for 4 days. Plus we never get to spend full weekends together and only see each other 2 to 3 times during the week due to work schedules.
The dilemma for me is that I feel like if I object she's gonna see it as me not trusting her or being pathetic and jealous of her ex. Which isn't the case. They've  hung out before. But never during our date time. If it was just like an hour or something I would be cool but if it's all night that's a no go for me.

How do I explain this to her without coming across as jealous and mistrusting?
<bot>: Gf may want to hang out with an ex. I've never cared before  but given the circumstances this time I do. How do explain my feelings about it without seeming jealous and mistrusting?