Ooh, stalky! Thats fun!
If you must know, the start of DP and I's relationship was somewhat messy. The first night I kissed her, I was still in a crumbling long distance relationship with someone else that I then ended the next day.
DP and I then messed around for a few months, non exclusively, before I got my act together and asked her to be exclusive. She was seeing a couple of other people as well during that time. In the middle of this DP got pregnant (despite both condoms and the pill), something we didn't find out about until DP actually went into labour.
So yes, I can be a bit fuzzy about the dates of stuff around that time. There's my version of the truth, DPs version of the truth, the version we told DD, the version we told our parents. And yes, I fudge the numbers on here sometimes because it can lead to questions that aren't really relevant to the thread, and end up derailing it.
To be absolutely clear for you, the conversation about swinging happened as part of me asking her to be exclusive. I honestly can't remember exactly at what point it happened now, 2, 3, 4 months in. I do know that she was almost certainly pregnant by that point.
Basically I told her I was falling for her, and that I wanted to be in an exclusive relationship with her. As a part of that conversation I told her that if she wanted to continue sleeping with other people, that was fine, I found it kind of hot, but that going forward it would have to be something we did together, like swinging. If that wasn't OK with her, then that was fine with me but I was out.
She took a day to think about it, decided she wanted to be with me, and that if she was going to be in a proper relationship then she wanted to be sexually monogamous as well. So that was that, and as I said I've never brought it up again.