Okay, so I’ve been with my partner for nearly 3 years and to me it feels like somethings happen in the past with my sister and him..

now they did follow each other on Instagram before we met.. but no messages or anything unless he deleted them but..

everytime she comes to our house or if we see her, he changes.. like for instance if she comes over, he goes straight to the room and hides, I’ve asked countless times what the problem is and he just makes excuses like ‘I’m tired’ or ‘I just need to lie down’ but when I go into the room he’s on his phone or playing his game..

I’m not trying to assume things but to me it really seems weird.. I’m not sure anymore

What does everyone think?