Is Demi Lovato upset with Nick Jonas for not inviting her to his wedding with Priyanka Chopra?

Newlywed lovebirds Priyanka Chopra and Nick Jonas are busy painting the town red with their love, but if reports are to be believed, the tables might have turned for tight friends Demi Lovato and Nick Jonas ever since the latter's marriage. Demi and Nick were close pals since their Disney days. But now, barely a month after Priyanka-Nick wedding, newer reports are suggesting that Demi is upset with her former friend Nick for not having invited her to his big day. Demi Lovato currently does not follow Jonas on Instagram.