he shouldn't have told her those cruel words, which proves that he is a complelet asshole.
他提醒登陆日期 = he worries what if she won't go there with him, he might lose his PR.
一旦有机会来临, women are about the same, but why men won't tolerate women's being unfairthful?
thinking about it is different from doing it. if he really did it, i will prefer to stay single.
骑驴找马 is not a good idea. you can do better without him. you don't deserve being unhappy all the time. try to get some money back before you dump him first.