<human>: Give me the gist of the text in a nutshell

Background info: We dated for 4 years, had a rough break up and didn't talk for a year. Started talking a few months ago and are fine as friends (though he may have lingering feelings, I already told him I don't). We are both currently single.

The Situation: He invited me to be his +1 for his friend's wedding. I know the couple and will know some others there, but they are all his friends. Going to the wedding involves riding with him in a car for 2 hrs each way (there is no other option). It will take place in one evening so there's no overnight stuff.

Why I need advice: This is the first time I've ever stayed friends with an ex after breaking up and I don't know where the boundaries are. Plus 1's to a wedding feels very date-like to me and I don't want him to get the wrong idea. But since I will know people there, it might end up being a good time overall without any other expectations.

Can people who have friendships with their ex's help me out with some advice about this situation and the friendship in general?
<bot>: Invited as a +1 by my ex to his friend's wedding. We have a just-friends relationship now. Is a wedding too date-like for an ex-now-friend?