Can I send a card to my ex gf because her dad died but not tell my current gf about it
Why will you not tell your GF?
I want to get her jealous when she eventually finds out
Feeling concerned about another person who lost a loved one is understandable. But you should tell your girlfriend about what you are doing. Hiding makes it seem worse than it is; Given the situation, I'm sure she will understand.
She will be fine. I'll spend the night with her that night too.
Well I hope you understand how weird that might make things. You should be able to trust each other.