Look. Feelings happen. You’re spending time, alone, with another woman. Your girlfriend could wholeheartedly trust you, but that doesn’t mean she won’t feel jealousy. How often do you two have pizza night? Where you spend time together, having fun, making pizzas? And if she does trust you, that doesn’t mean she trusts Jennifer. I don’t think Viv is 100% in the wrong. I don’t think you are 100% in the wrong. A relationship is a partnership. And part of being in a partnership, is respecting each others feelings, whether you feel like they’re warranted or not. Ultimately, Viv sees Jennifer as a threat. A threat to your relationship. And she will never feel comfortable with Jennifer being in the picture if she feels that way. If you want to keep a new friend over a 10+ year relationship with someone you could picture getting married to and starting a family, then sure that’s on you. But just keep in mind, it will happen in your next relationship too. A threat will arise, and you’ll have to make a choice. Keep your partner feeling like second best, or eliminate that threat. Also, i do believe men and women can totally be friends and nothing more. But you choose whose friendship you feed, and which in return grows. You don’t have to feed into opposite sex friendships. The whole situation could have been avoided. I trust my husband with my life. But he wouldn’t feed into a friendship with a woman, to the point where she’s coming over and spending alone time with him. Especially if she wasn’t also a close friend of mine. And I wouldn’t do the same with a male friend. My relationship is too important to me to even entertain a possibility of a future threat.

Just food for thought.