Bio Oil is pretty good in my experience in reducing their appearance
Clarins do a toner oil. I have been left with some horrible marks but this has really improved them! Not sure they’ll ever go but they are 10x better since using it https://www.clarins.co.uk/tonic-body-treatment-oil-firming-toning/C020101003.html
Bio oil is good. But like your partner says they are your mummy stripes! But if you’re really not happy with them you should look into laser treatment I heard it reduces the appearance of them❤️
Only time will make them paler, but your other half is right, it's a beautiful marking that shows what an amazing thing you have done! Im actually starting to love mine now- i thought id got away with it until little lady actually arrived! Don't be mean to yourself after only 3 weeks as well 💖