Copying & Pasting URL Issues...

[ccmaine]

I'm having an issue when I copy and paste URLS in my posts. I have weekly posts that I do which require the same intro. So from week to week, I usually copy that intro from one post to another. But something weird happens when I copy and paste, it automatically inserts additional parameters in the URL. For example:

After copying & pasting this multiple times in posts, I finally realized that there was an issue. This URL should read: ilovetogossip.com/targetcoupons. Instead because I've copied and pasted it a few times it looks like this:

http://www.ilovetogossip.com/categor...target-coupons

which obviously results in a 404 error.

Any idea as to why this is happening?