Complex sentence: Meanwhile, Dave's home life is disrupted by Elrod and Kelly who begin turning up regularly, almost every time Elrod being drunk, prompting Dave to take pity on him as he too is a struggling alcoholic.
Split into simpler sentences: Meanwhile, Dave's home life is disrupted by Elrod and Kelly, who begin turning up regularly, almost every time Elrod being drunk. This prompts Dave to take pity on him as he, too, is a struggling alcoholic.