Velcro baby. Help!

She’s 15 months and extremely attached to me. If she could crawl back in she would. Out of curiosity my husband laid down on top of me with her next to us in bed to see what she would do. Neither of us spoke or made any sounds. As soon as she saw him she sat up and gave him a dirty look and then slowly wiggled her way between our faces until she was laying firmly on top of my face and chest lol. Anyone else going through this? How do you fix it? She has meltdowns when I go to the bathroom. I have a 3 year old also who has never acted the way she does and was very independent from the earliest I can remember. I’m pregnant with my 3rd and fear I won’t survive