I believe our families and their traditions, like getting together often and sharing a meal, have been under attack for so long and are so battered, that a normal family environment can seem abnormal to some.
I believe when someone is trying to pry you away from extended family life, they are unwittingly, or otherwise, trying to separate you from what is good in your life. This may seem harsh but it needs to be said. Extended family life, that is fruitful, is rare today.
Consider these possibilities.
A: This dear significant other wants to get away from you and is using your family as the scapegoat for why it is not working out between you.
B: This person wants to take advantage of you and needs to separate you from the people that know you well, and who can tell when something is going wrong in your life.
C: This person is from a dysfunctional family, and becomes psychologically defensive when he/she sees the joy in your life that is due to extended family interaction. This person may actually be in dire need of the joy your family offers.
Ask this person if he/she will join in deepening your faith. Will he/she join you in learning more about the faith, reading the Gospel aloud to eachother, attending monthly Sacrament of Penance or Eucharistic adoration. If the answer is no to all of these, then be careful.
Want to meet someone great in your life? Forget the bar scene. It is the line awaiting Sacrament of Penance on the first saturday of the month where you need to meet a great partner in life.
God bless you!