My DH's cousin was dumped by her H for an OW. Understandably, she has leaned on my DH for support as he is a very caring and understanding person. I really felt for her and sent her my best wishes. She just wanted to go out for drinks and get pissed with my DH alone. I was fine with this. This has been going on for a couple of months now.
On Saturday, I decided I would like to come with them as I am left at loose ends at the weekend so I offered to drive them on their night out. DH said "I think Cousin just wants it to be me and her" I said "Well I want it to be me, you and her" and I insisted on joining them.
She seemed surprised yet pleased to see me. It was nice to have a night out with them although I had to stay sober while they got pissed together. She was obviously having her ego boosted by having these nights out with DH. She was whispering sweet nothings to him and running her hands through his hair. This behaviour did not phase me as she has always been extremely flirtatious with him - he does not reciprocate.
However, at the end of the night she was saying to him "Remember those times before you met Dolldagga, me and you used to go to that restaurant and they all thought we were a couple? Well XH is going to have the kids over at his every other weekend, lets do that again just me and you every other Friday night and lets go to the clubs on the Saturday nights and Dolldagga can come on the Saturday!"
I have told DH this is going too far now. Am I being unreasonable?