隔阂: misunderstanding, estrangement, (language etc) barrier...
男朋友: boyfriend...
累积: to accumulate...
序: order, sequence, preface...
前任: predecessor, ex-, former, ex (spouse etc)...
重大: great, important, major, significant...
日报: daily newspaper...
通红: very red, red through and through, to blush (deep red)...
悲欢离合: joys and sorrows, partings and reunions, the vicissitudes of life...
毒: poison, to poison, poisonous, malicious, cruel, fierce, narcotics...