Former Southern Charm star Kathryn Dennis has landed in hot water with a DUI arrest on Monday night, RadarOnline.com has learned. The ex-Bravolebrity was booked for driving under the influence and driving with an open container following her alleged involvement in a three-car collision in Goose Creek, South Carolina. A police report stated that she looked impaired at the scene of the accident and allegedly had “glossy eyes and an odor of alcohol coming from her person.” TMZ was first to report the news. Dennis announced her departure from the hit show in 2023 after 8 seasons, having since been…