About the text and being ignored. Would you want to have him answer a text message from his other partner if he was spending time with you?
It's just the basic things of thinking it from their shoes. Would you be ok if they did this or that. That can also kind of help to see where they are...
The friendship hit is a big concern that should definitely be examined.
Are you close to each other? Would you be hurt if the relationship fell apart? If you and she are practically sisters than is the risk of that ending worth the benefit to your relationship?
Sex is never just sex in my...
Hey
I just wanted to say for me personally it was a little bit of a shock that you stayed with him. Just the way you described it for me was a major red flag for "cheater". Hearing that he was that way he entire mature life made it sound a lot worse.
As for staying with him. If you want to...
Telling
If I get serious with someone, I tell them that I am interested and that I am with someone else.
That is somewhat of a bomb to drop so it can leave a bit of a pause.
After that we can talk openly about a relationship that we can agree upon or they react badly and I politely excuse myself.
Jealousy
I would suggest just to talk. If you feel honest jealousy, take a moment, figure out what the reason for this jealousy is. It's very helpful to identify the specific triggering factor for the jealousy.
Then talk to him and also eventually his other partner. I believe that "don't...
Maybe
I am new to this forum(today) so I'm probably not someone to listen to all that closely. I would say that you know the answer to this yourself the best. If you find it acceptable for them to pursue this sexual relationship, then go ahead. I think she is a bit too soon out of the...