The top picture you describe as bubble gum pink reminds me of my 'single' pink confederate rose (hibiscus mutabilis). I posted a picture in the hibiscus forum 2018. The picture looks like 2 colors of flowers, light & med. pink but the shadow of those facing downward is what made them look darker. Bubble gum pink is a great descriptive color for them. That plant has a large, wide maple shaped leaf & grows to about 5 feet the 1st year from seed here in zone 9 then up to 12 feet & tree-like by year 3. I can't tell what leaf yours has so maybe that fact alone could help you ID it.
The second picture is similar to my Rosie Pink 'Southern Belle' series variety. They grow to 5 feet & have the elongated leaf like I see in your picture.
Both of my plants make lots of seeds & come up also each Spring from root stock. Hope this helps.
Trudy
