Is this the end of my marriage?

[P17]

I'd actually like a reply to the previous post I did, however I can't edit it to add this.

I have been looking at the dates my wife has given me to spend time with my daughter and I. Some of them are for the entire day almost. I am thinking, how the hell can the boyfriend sit back and tolerate her spending time with her H and her step-daughter while he is here? I know if it was me I'd be saying you need to break this off completely ...

I can only see two outcomes for this - he get's p***ed off about it and gives her an ultimatum that she needs to stop which will mean that she is eaten up by the fact she has stopped contact with her step-daughter OR he continues to let her do it and he get's eaten up by it.

Can somebody explain this or am I simply reading too much into it (again)?

Is this an advantage for me or am I being naive?

Anyway, as I said please read the previous post to this first! :-)