When did you decide to pursue a straight life? Time and date would be great thanks.
1.follow or chase (someone or something).
2.continue or proceed along (a path or route).
As is often the case when discussing this touchy subject, I realize that by singling out a single harmless word such as pursue, you are essentially straining the fly specks out of the pepper in an effort to seem like you have a valid point.
If you read my comment again, you'll see that I didn't use the word "decide", you added that yourself and it changed the intent of my comment. You assumed I was saying that someones sexuality is a choice and I wasn't, You may also me assuming I'm straight.
Since you asked however, I don't have a specific date but by the definitions you provided, I suppose once I realized what my sexual preference was, I followed or chased individuals that fit that preference, found someone who wanted to make a permanent arrangement based around that preference, and then continued or proceeded along that path or route ever since.