Staying in that place

I have an ex who is truly beautiful but who left me because I couldn't please her in bed. She recently started dating a friend of mine, and they haven't been subtle about it...she said it's good for me to see her with someone else, and as a cuckold I suppose she is probably right. Sometimes I do get jealous, but I know since he is a real man he deserves her and she him. I also know I should accept them rubbing it in a bit...I am a cuck after all. Sometimes I do get jealous a bit...I need to be reminded of my submissive place and stay there. Any tips on that?

If you really mean what you say then suggest to her that you are prepared to fluff him before he fucks her, and clean both of them up afterwards.

Or just offer domestic services, if they don't feel comfortable with you around when they enjoy eachother. Maybe one day, you might be allowed to clean the bath when she gets fucked next door.
it might be painful

Thank you for the suggestions. I will be sure to ask. I cant stop thinking about cleaning her up...
I am a bit jealous because he gets to spank her; I always very much wanted to but she said I wasn't man enough which was probably true. She also sucks him, or at least one of her friends said that, which she never did for me.
It must be nice to be a real man.