Relationship/ insta help

Hey everyone need some advice,

So I have a boyfriend I love dearly , we always take pics together and stuff but I never post them because I have aunts / cousins ( really shit talkers and I don't want them knowing I'm in a relationship) on Instagram so I can never post anything

Also I don't want my mom to see the couple pics either

I also can't block them because then they will be asking me soo many questions and probs be suspicious that I blocked them

SO I was thinking I would just open up another Instagram?!

I think then I could post what I want and not care if my family sees it

Only problem is that I would still have to post on my original so for example my mom won't be like why aren't you posting anything , I would just post way less :)

Help & advice please !