Did he mean what he said?

My boyfriend and I are both freshman in community college and broke up, we got into a fight and my parents were being controlling. I was going through old pictures and found one my boyfriends best bud took of us in the school parking lot holding hands, we both had 1 backpack strap on our right shoulders and we both were walking in synch. I remember my boyfriend sending me the pic and he told me his best bud said that’ll be one you show to the grandkids. I truly do feel and believe he is my soulmate and was wondering if what he said About the picture was an exaggeration or if he truly meant it and felt that way?