Spite marriage refers to a marriage motivated primarily by a desire to hurt or get even with someone else. Normally, the marriage will see more people get hurt and no happy ending in sight.

恶意婚姻指为了伤害某人或者与某人扯平而走入的一段婚姻。这种婚姻的结局通常都是，更多人被伤害，没有人从中得到幸福。

For example:

She soon found out that her spite marriage to Bob was a big mistake. You see, Tom didn't care -- in fact he congratulated them both with the utmost sincerity.

不久，她就发现我跟鲍勃的恶意婚姻是个巨大的错误。你看，汤姆根本不在意，他还真诚地向他们俩表示祝贺呢。