#1 – Have A Thing For / Have A Crush On 对...有好感；暗恋
To have a thing for someone is an informal and indirect expression to say you are romantically interested in that person. Another, more direct way to say it is that you have a crush on someone. These expressions are used when you feel attracted to the person, but you’re not sure yet if the other person is attracted to you.
“I have a thing for a guy in my class, but I’m too shy to let him know.” 我对班上的一个男生有好感，但我太害羞了不敢让他知道。
“I think Peter has a crush on you – he’s especially nice and friendly when he’s around you.” 我觉得皮特暗恋你--他在你身边的时候变得特别善良友好。
#2 – Crazy About 为...而疯狂
If you’re crazy about someone, that means you like or love somebody very much. You can be crazy about someone who doesn’t share your feelings, or you can be crazy about someone you’re already in a relationship with.
“He’s crazy about her, but she won’t even give him the time of day.” 他为她痴迷，但她几乎连话都不愿和他多说。
(= she won’t even speak to him)
“Jen and Chris have been together for six years and they’re still crazy about each other.” 詹和克瑞斯在一起六年了，但他们还因为彼此而疯狂。
#3 – Get Serious With Someone 和某人的关系更进一步
If things are getting serious between two people, it means the relationship is getting deeper and is not just a casual thing. Two people who are “getting serious” might decide to be exclusive (date only each other, not date other people), or move in together (begin to live together), or discuss marriage.
“My brother’s never had a long-term relationship, but it looks like he’s getting serious with his current girlfriend.” 我哥哥恋爱时间都不会长，但看起来他好像对现在的女朋友很认真。
In your past relationships, how long has it taken before you got serious with the person? 你过去的恋爱中，多长时间后你才会和她更进一步？
#4 – Pop The Question 求婚
To pop the question is an informal way to say “ask someone to marry you.” The typical verb used for this is propose.
“You’re engaged – congratulations! So, how did he pop the question?“ 你订婚了--恭喜！那他是如何向你求婚的？
#5 – Have An Affair 有外遇，出轨
If a married person has an affair, it means he or she has a lover outside their marriage. They are romantically or sexually involved with someone who is not their husband/wife. “Have an affair” is usually only used for married couples; the more general term “cheat on (someone)” can be used for both married couples and boyfriends/girlfriends.
“Travis discovered his wife was having an affair with someone at work.” 特拉维斯发现他妻子和同事有婚外情。
“Lisa said she’d leave her boyfriend if he ever cheated on her.” 丽萨所如果她男友有外遇她就离开。
#6 – Dump Someone 甩了某人，和某人分手
To dump someone is to end a romantic relationship with that person. If you dump someone, it means YOU decided to end things (and the other person wanted to continue). If you are dumped, it means the other person decided to end things.
“Erin dumped her boyfriend because she said he was too controlling.” 艾恩和男友分手了她说因为男友控制欲太强了。
#7 – Soulmates 灵魂伴侣
If two people in a relationship are extremely compatible in their personalities and values, meaning that they will probably stay together for a long time (or even forever), they can be called soulmates.
“I dated a lot of guys before finding my soulmate – and we’ve been married for 25 years so far.” 在找到灵魂伴侣之前我和很多人约会过--现在我们已经结婚25年了。