Complex sentence: She then goes for a drink at R&R and Joey tries to comfort her which leads them to start flirting with one another, they, then share a kiss and go back to Joey's house to have sex.
Split into simpler sentences: She then goes for a drink at R&R and Joey tries to comfort her which leads them to start flirting with one another. They then share a kiss and go back to Joey's house to have sex.