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

Would it bother you if you worked a regular 9-6 M-F type job, and your SO (who lives with you) is more of a part-time freelancer with the ability to do as he pleases with 90% of his time, and your SO has an ex with similar free time and they spend a lot of time together while you're at work?

That's my situation, and I'm trying to figure out how to deal with my being uncomfortable with it. 8-month relationship, by the way, and one that's absolutely wonderful in every other way. We get along fantastically & adore each other and it's the bee's knees. 

I do not think my SO is physically cheating on me. I do not think he ever would. But it still bothers me. Especially because the ex in question is someone who constantly tries to get his attention and get him to do things with her, calls him her "best friend" (though he says she's not his best friend, and they only dated for about a month like 2 years ago). I'm not saying that she's even trying to get back together with him, or trying to sleep with him, but she seems a bit attention-hungry to me. As long as it's only happening when I'm at work, it shouldn't matter, right? I feel like that's reasonable, but it still bugs me that they get to do all the fun daytime couple-y things together, while I come home tired from work, get maybe a few hours on weeknights and the weekends.
<bot>: My SO has a lot more free time than I do, and he spends a lot of it with an ex in a platonic way.