I'm not sure if she's right or wrong, thing is it's a personal choice first of all. Keep in mind there are no guarantees that it will work out even if you fight for him and he may never get over his fear.

Here's the thing that gets me. I read your other post. Essentially even though he may not be looking for another to date, there has to be an underlying reason why he wanted to break up and essentially there is something about being committed that he cannot handle. Regardless of the reasons he is confused and completely 100% in the wrong here in asking you to remain committed to him, exclusive to him but only to a point. Relationships that expect exclusivity need to be both ways and even more importantly asking for excusivity without commitment is just, it jsut doesn't make any sense at all. It's like putting you on the shelf and saying he wants to keep you on a tether to call back at his own discretion. Even if he's not doing any playing around now it's a huge mistake on your part to enable this behavior and it opens a huge can of worms going forward. he will know that he can just put you on the proverbial shelf if he doesn't feel like being there for you becuase he'll know it's ok and you'll let him do so. I hope you can see where I'm going with this.

He needs to make a decision between having a committed relationship with you and be committed himself, or let you go 100% and break it off clean even if only for awhile. He's manipulating you. Even if it's his first time being in love, he's playing with your heart like it's a game

I know in your mind you think he's wonderful in other ways, you love him, etc but.. I will be bluntly honest - you can do better and be treated better than this. Letting this happen to you now is only a foreshadowing as to how a longer term relationship will be with him.