This might sound like a strange question, but I've had myself worrying about something that happened years ago. When I was younger, I was dating a non-Catholic and, to make a long story short, I justified fornication by the claim of a friend that having sex is like marriage (or something to that effect). My worry began when I learned recently that spouses confer the sacrament of Matrimony upon each other, i.e. two people are married by giving their consent to each other (the Church requires this to be in the presence of witnesses and a priest or deacon). I can't remember exactly what happened, but I worry about the way in which I explained my reasoning to my then girlfriend (that having sex was basically marriage [although this might not have happened as I am describing]) and that this may have constituted some kind of consent to each other. I worry that it might still have been considered marriage in some way despite not fulfilling the Church's requirements and that my words and thoughts might have constituted consent. I'm sure this sounds as ridiculous as I think it does, but it's hard to get the thoughts out of my head. I know that I didn't consider us married in the legal or sacramental sense. I still considered us to be boyfriend and girlfriend. This was especially because I thought the sacrament was given by a priest and because we had not gone through any ceremony. I think it was mainly rationalizing my sin (i.e. suggesting that it was okay because we were in a sense married by intending to marry and giving ourselves in that way to each other). Anyways, if anyone could help demonstrate that I'm needlessly worrying it would be greatly appreciated.