Help, nipple confusion!

Vanessa β€’ Married to the most wonderful & handsome man in the world! πŸ‘§πŸ»πŸ’ž born Oct. 23. 2016 & πŸ‘ΆπŸ½πŸ’š born May 2. 2018 β™₯️IG: DwyerBearFamily
I had to formula feed my baby for 2 weeks and now that I went back to breastfeeding after her lip tie was removed she is sucking on my nipple on my breast as if it's a bottle! 😫 I am so discouraged and feel like I can never get her to suck the way she used to anymore 😭