"I'm more concerned that it may be like the probability of you in bed again with peril"
This sentence means A is worried about B who will repeat a past pattern of engaging with a dangerous situation or significant risk. It uses the concept of "peril" as an abstract representation of that risk, rather than a specific person.
Again這裏指b以前有過類似的事,a調侃式擔憂b可能會重蹈覆轍再來一次同樣的peril。again是指同樣的危險遊戲peril,不是指金