Aww mama, ganyan talaga ang adjustment period lalo na kung may bottle feeding in between, pero may chance pa yan na bumalik! Try skin-to-skin contact muna para ma-familiar siya ulit sa iyo, and offer the breast kahit parang ayaw pa lang, sometimes kailangan lang ng patience at consistency; the inverted nipples might be making it harder for baby to latch kaya siguro best to check with your OB or lactation consultant para may proper technique and maybe nipple shield para tulong, because that's really their expertise and they can guide you step-by-step sa situation mo.