Search Results: moving in together marriage

We dated previously, broke up, got with other people, got back together again, talked about marriage, children, had a bad row and broke up again.

We stopped following each other in Insta. He has three accounts on Insta, two of which are private. One of his private accounts is a friends only account on which I used to follow him (I stopped following him on this account) and he has now followed 6 more people who I know nothing about.

On his public Insta account he has started following 4 women (two of whom are married but I don’t know if he realises this), the other two are very pretty slim models. He likes their posts but completely ignores mine and I ignore his tbh.

He has deleted ALL emojis on his posts which relate to us – we had a special emoji we shared and deleted some special wording we shared on the bio part of Insta. I recently deleted my wording.

He has kept about 4 pictures in his Insta which relate to my home town and that’s it (I am not in any of those pictures). He responds to girls that comment on his posts and blows kisses, kiss marks and heart emojis, etc.

Is he just reacting to our row or is he genuinely moving on and I should do the same?

Weve been dating for a year now, and we are really serious about each other. I want to marry him. I've never wanted to marry someone before. I have never had such a connection with anyone in my entire life. And he really wants to get promise rings (2 promises- for marriage, and no intercourse til we are married).
I'm asking this question, because, I have some abandonment issues. In previous relationships, I never let myself get truly attached. I was in a two year relationship, and when I broke up with him, I didn't even cry... I was that unattached.
But this guy... He completely swept me off my feet. He is my best friend, we laugh together for hours on end. We connect on such a deep level, I can tell how he's feeling without even looking at him. I am finally in love. He looks at me like I am absolute gold, that I am a treasure, an angel. He calls me his queen and princess and takes such good care of me.
And if he left me, I'd be so devastated. I don't want to take this step, and then be left wishing I had stuck to blocking people out.
I am in therapy and doing really, really well. I trust him. But a tiny voice is nagging at me, and I'm afraid of commitment.
Because of this we intend on moving slow. First promise rings, a long engagement, and then finally marriage. I think I'm ready. I love him and I know he loves me. I'm ready to step out of this fear of commitment and this is such a small step that, I think I can do it, and I want to. But I need a third party opinion. So, what do you think?