I don't remember much but the heroine is adopted (I think) by this family and she thinks she is getting some inheritance after dad/gramps dies. The family is pretty horrible. Except one cousin our Hero whose mother was family's daughter and she married against gramps wishes probably or idk.. no one in the family likes him much but he was filthy rich.
So for inheritance she asks Hero to fake romance/engage her yada yada yada and she has a boyfriend who briefly visited the estate and she fell in love. Hero agrees cause he has some sisterish affection for her.
Then there is no inheritance in her name after the gramps dies, hero thinks she faked to trap him and is like the horrible family so there is some revenge forced lurve mojo he does. (Its bad, she didn't like it a bit) so our Hero thickhead is pretty cruel for a few pages. After which we get proof of heroines innocence. He grovels for like 4-5 chapters, takes her to some Caribbean island too for honeymoon, buys her expensive stuff,tries to make her jealous nothing works on her she has too much MU in her mind and eventually she asks him to let her go which he does.
She stays in London with her friend Miranda Blair and finds out she is pregnant. Hero's fangirl(she is fixated on hero in initial chapters although she is married to his friend) sees her pregnant with some guy hero's family has past issues with in a restaurant she informs hero of heroines pregnancy, he comes, takes her to picnic, her labour pains start , she gave birth to twin boys(may be).
She takes a separate room in house (I don't remember the reason) but they are amicable and good. So big function at home , chaos with horrible family, horrible another cousin inviting heroines crush/ex-bf hero thinks she is just tolerating him, and is pining for ex, heated argument, he leaves home, she is terrified, they solve stuff, hero's butler is happy.. HAA.
Can anyone tell me the name. I don't remember Hero's country accurately probably Spain but after leaving hero our heroine came to London.