Jack closed his eyes and took a deep breath talking about his past was not easy for him coupled with Ianto's questions about fidelity it was even harder.
"I barely remember what my father and mother were like as a married couple because I was just a kid when we lost both him and Gray. I didn't know what love was like and so when John started flirting with me it went to my head in a big way. Here's this guy who likes me for who I am I thought."
Jack took another deep breath. "My first heat was hell I had no idea what was going on and I'd fallen for John hard so he used that, told me he loved me and gave me the best sex I'd ever had. I thought he was the one...just like I know you are the one now Ianto....but in John's case I was wrong...oh god I was wrong."