Originally Posted by Reggiethelion
We have minimal time alone. We have multiple kids, both work, in a city with no family. I have the kids when she is training. I have no problem with her running, I support it. I just think she should have a female running partner.
Then you know what you must do. If this is your boundary you need to tell her that her spending this kind of time with this guy is not acceptable to you.
I honestly think you are being nice enough of a guy willing to do your share of the work and then watch the kids while she runs. That is being supportive. It feels a tad funny though that your watching the kids so she can do this activity with this guy. Tell her you will support her running but she needs to find a female partner to train with.
Do not argue about this. It is not that you want to convince her over time to change her mind. This is your boundary and you will not support her doing this running with this guy. The problem is not that she is having an EA with him. It is that she is bonding with him and spending too many hours with him and not you. Yes this could become an EA/PA.
Again this is not a short term thing. This is likely from now on.
I suspect you will get a lot of folks that say you should just trust her. I don't think this is about trust. I think this is about choice. I see this as a very dangerous choice.