You don't need to love every person you meet and welcome them unto your own world—trust me, it will be exhausting on your end to care to everyone, and shower them love you have within. I'm not saying that you can be bad to them, no; but you got to decide who are these few who ought and deserve to have your affection and attention. The thing is, our love and care is also limited, alike our time here in this planet—we have to use it wisely and only to those who are worthy to receive it.
You don't need to share everything you have to everyone. Being good and kind to them is enough.