Not able to have a relationship/ interaction

You mean another Sim than the ones you uploaded ? She can't interact with him cause he has the trait.

If you remove it, she should be able to interact with him again.

Yes, another sim then i uploaded. Do i need to put in an other cheat first? (example testingcheats true) or how do i know the trait is gone?

It shouldn't lead to problems if you remove traits that aren't there so you can always try. Maybe he has another issue though

If the options go back to normal, you'll know if it worked or not. You don't need any other cheats.

Happy to check the other Sim to if you upload him as well.

I've uploaded them to my gallery. Name: Test 2

Everything is fixed! Thank You for your time and effort.

For both Sims or do I still have to check the second ?

Both Sims.

Glad to hear.