I was dating a guy a while back who never got the help he needed, but I am pretty sure he was Bipolar based on very manic behavior he displayed. He definitely made me feel even more euphoric.

He used to spend a lot of money on lavish things, he would drive recklessly, and display very erratic and grandiose behavior. We'd impulsively stay at hotels and suites way out of our budget and spent the whole time drinking, having lots of sex, and generally living a lifestyle way out our means. I felt like a celebrity--as if I was on top of the world. We did this every weekend for a few months straight, although he was in bad financial shape to begin with. The more we were with each other, the more reckless we were. We planned trips across the world, but since we both crashed before being able to go, I ended up owing money on tickets I purchased.

We had a lot of fun together, but it ended up being a destructive relationship that fell apart when we both became depressed and reality set in. I felt so euphoric with him, but it later resulted in financial and emotional problems. Also, since he made me feel especially "up," I yearned to experience that mania again once it diminished and had a hard time getting over him. Really I realize now, it wasn't him I was trying to get over. I was really just trying to cope with missing that high feeling I experienced before falling into a depression. Now, I realize it was such an unhealthy situation.