Should I get a new IUD with each new sexual partner?

I recently had an IUD inserted. I'm not currently having sex, but wanted to be prepared as I am seeing someone who I may become sexually involved with.

My concern is I was told the IUD would need to be removed if I had sex with a partner and then changed partners later. This IUD is a 5-year IUD and the cost was quite a bit. If I have sex now and then stop for a year (or any period of time) and was to become sexually involved again with another partner, why would it need to be removed? If STDs are not an issue, does it still need to be removed?


If someone's sexually adventurous, does that mean they're more likely to cheat?

If my wife is sexually adventurous, does it mean she's more likely to cheat? My wife is slowly opening up to me about how sexually adventurous she wants to be (I'm talking bondage-type stuff), and I'm afraid that maybe she might cheat in the future if her "appetite" isn't met. I haven't voiced any of these concerns, I've been completely supportive of it and actually would be completely ok with doing all of it. I just worry that maybe the adventure-ness might be a sign of promiscuity?