Hi L. F :-)
As a mom of a 23 year old now, I find myself often laughing at myself and the ways I brought my daughter up at times :-) With a smile in the future, you'll look back and remember these moments, when your child was telling you (at 4 months of age) I'm not the least bit interested in having a stranger hold me or talk to me.. and yet.. as they get older, more towards 4 - 7 and up.. we spend the next times on our parenting journey telling them to "not talk to strangers!".. LOL!
It's actually funny.. once you've been through it.. the best one I like is how MANY times I encouraged my daughter to eat.. eat.. eat!!! And now.. it's.. hey, stop eating, stop, stop ..(as she moans about being on a diet) LOL!
The best thing you can do for your little one is keep up the good work .. when she is around you and your husband she is an easy going happy baby.. that's the best! Socialization will come later, just enjoy her now and if you go out in public with her just tell people she's uncertain around strangers and keep a smile on your face :-)
You're doing great!
hugs,
A. R.N., Energy Medicine Practitioner