over thinking it ?????

Annabel
HELP! I'm on period so this could be me totally over thinking this, but my boyfriend has this friend named cat and they text and Snapchat a lot. I've had multiple people tell me that there's Nothing to worry about. But still I find it werid that they text and Snapchat often like everyday often... I'm not the jealous type I have guy friends and I'm fine with him having friends that are girls, but I don't text my guy friends everyday .. So I need advise.