Time travel and cheating on lovers

So last night instead of working on my 1500 word essay that was due this morning, I started pondering the deepest, darkest depths of philosophical thought. Then an idea hit me, and it became immediately clear that I would have to bring this up to my fellow philosophers, academics, and recreational thinkers on TSR.

Say time travel is a real possibility and we have the technology to do so. You also have a girlfriend/boyfriend, fiancé, or wife/husband. You decide to travel back in time to the 18th century for whatever reason, and while you're there you spot yourself the most gorgeous, easy looking woman (or man) you've ever laid your eyes upon. You go over, say hello, and BAM, she or he is naked and all over you and you show them how people get down in the 21st century.

Now, is this cheating? Because technically, your lover isn't even alive yet. Or does it still count as cheating, since you were still very much with them when you departed on your journey?

I'll tell you yesterday.

I was thinking about this the other day. I would do it. Future cyborg babes. And surely if you told your girlfriend and she dumped you, you could just travel back in time and get back with her. It's the perfect situation.

If I know you present time and go back and sabotage your existence by preventing your parents having sex at the key moment that led to your conception is it murder of a future being that existed in my time line?

If it's not murder of a future being and we had time travel capabilities, surely everyone could go back and sabotage people they don't like?

Think about it practically.

If an average citizen could afford to time travel regularly (in a simple way where you and your molecules are moved back/forward in time so no copies are made) a social rule would develop meaning that social connections and relationships are still in place whatever the time.

However, if you were sent back in time (perhaps forcefully, and by aliens ) and think you wont be able to get back, but somehow find a way back, it's not cheating.

Think about the what 'cheating' is. The connection you have with your lover is in your mind (even if it feels like its lower down...). You get to decide if it's still there or if it's already broken.

This is basically the plot of a sitcom called Goodnight, Sweetheart, you know.

So last night instead of working on my 1500 word essay that was due this morning, I started pondering the deepest, darkest depths of philosophical thought. Then an idea hit me, and it became immediately clear that I would have to bring this up to my fellow philosophers, academics, and recreational thinkers on TSR.

Say time travel is a real possibility and we have the technology to do so. You also have a girlfriend/boyfriend, fiancé, or wife/husband. You decide to travel back in time to the 18th century for whatever reason, and while you're there you spot yourself the most gorgeous, easy looking woman (or man) you've ever laid your eyes upon. You go over, say hello, and BAM, she or he is naked and all over you and you show them how people get down in the 21st century.

Now, is this cheating? Because technically, your lover isn't even alive yet. Or does it still count as cheating, since you were still very much with them when you departed on your journey?