1. go out together ( go out with sb， You and Lee have been going out together for ages now. )
(especially of young people 尤指年轻人) regularly and go to different places with them because you are having a romantic or sexual relationship with someone. 与某人谈恋爱（或有性关系）
They'd been going out together for three years before they decided to get married.
2. warm to( I warmed to him at once-it was just the odd way we met )
(对某人)产生好感;(对想法)开始感兴趣；If you warm to a person or an idea, you become fonder of the person or more interested in the idea. [V to n]
Those who got to know him better warmed to his openness and honesty...
那些对他日渐了解的人被他的坦率和真诚所打动。
3. strike up ( So we soon struck up a conversation. )
开始(交谈);建立(友谊);开始(来往)；When you strike up a conversation or friendship with someone, you begin one. [V P n (not pron)] [WRITTEN 笔语]
James struck up a friendship with a small boy who owned a pony on the island.
4. flirt with( So，you flirted with him，no doubt )
(和…)调情;(和…)打情骂俏；If you flirt with someone, you behave as if you are sexually attracted to them, in a playful or not very serious way. [V with n] [V (non-recip)]
Dad's flirting with all the ladies, or they're all flirting with him, as usual...
5. fuss with( I told my daughter-in-law that she fusses too much over her children )
(对…)关爱备至，过分体贴；If you fuss over someone, you pay them a lot of attention and do things to make them happy or comfortable. [V over n]
Auntie Hilda and Uncle Jack couldn't fuss over them enough.
6. bust-up ( But it has caused a major bust-up in our relationship. )
常常导致关系破裂的激烈争吵；A bust-up is a serious quarrel, often resulting in the end of a relationship. [Informal]
She had had this bust-up with her family
7. come between ( It's come between me and my son as well. )
间;挑拨;妨碍；If someone or something comes between two people, or comes between a person and a thing, they make the relationship or connection between them less close or happy. [V P pl-n] [no passive]
It's difficult to imagine anything coming between them.
8. cheat on ( I now suspect he may be cheating on me. )
背着(配偶、性伴侣)乱搞;对(配偶、性伴侣)不忠；If someone cheats on their husband, wife, or partner, they have a sexual relationship with another person. [V P n] [Informal]
I'd found Philippe was cheating on me and I was angry and hurt.
9. patch up( How can I patch things up? )
平息[争吵]; 修补关系；If you patch up a quarrel or relationship, you try to be friendly again and not to quarrel any more. [V P n (not pron)] [V P n (not pron) with n] [V n P with n] [V n P]
She has gone on holiday with her husband to try to patch up their marriage.
10. suck up to( My best friend is always sucking up to our lecture )
奉承;巴结;拍马屁；You say that someone is sucking up to a person in authority when you do not like the fact that they are trying to please the person because of the person's position. [V P to n] [Also V P] [disapproval] [Informal]
She kept sucking up to the teachers, especially Mrs Clements.
synonyms:
fawn，truckle，crawl，toady， compliment， flatter，butter up
奉承，巴结，讨好，拍……马屁
These words refer to seeking approval from others by praising them or behaving towards them in an obsequious or servile manner.
1) behaving towards them in an obsequious or servile manner.
fawn
can literally indicate the affectionate action of a dog towards his master, exhibited by licking him and sprawling before him, by tail-wagging and other forms of adoring behaviour. Servile behaviour of a comparable sort is suggested when a person acts in this way, although here the word becomes contemptuous, whether or not the obsequious display is sincere or undertaken cynically for self-advancement.
Truckle, crawl and toady
are harsher in their contempt than fawn, although less vivid and specific about the behaviour they point to.
2) The remaining words all emphasize verbal praise as the means of gaining approval.
compliment
a. alone can be used approvingly; the word can even indicate genuine admiration expressed for no ulterior motive
b. But the word often applies to praise given insincerely as an empty formality or as a self-interested gesture; in this case, the tone of disapproval is much milder than that of any other word here. [He complimented her on her new dress without even looking at it; She refused to complimented the fatuous critic merely to win his approval.]
flatter
a. Flatter concentrates exclusively on the paying of insincere compliments for whatever reason: She thought it could do no harm to flatter her escort a bit, at least on his tasted in wines
b. Sometimes the word can indicate a surprising but genuine interest that is taken by the recipient as a not wholly deserved honor: She flattered us by coming early and staying late; flattered by the sincerity of his concern for her.
butter up ( I think she's trying to butter him up so she gets better grades. )
Butter up is an informal phrase that suggests not only the obsequious behaviour of fawn, toady and crawl but also the insincere praise indicated by flatter. The word adds to these implications completely cynical attitude behind the ingratiation acts and words and even a disrespectful or contemptuous attitude towards the person being courted: drop-outs who claim to detest their middle-class parents but know how to butter them up when the need arises.
讨好;奉承;拍…的马屁；If one person tries to curry favour with another, they do things in order to try to gain their support or co-operation. [V inflects]
Politicians are eager to promote their 'happy family' image to curry favour with voters.