I'm sorry to hear about your difficulties.
I only brought up marriage in Heaven because that's been my focus lately. When I was a young adult I was very far behind in life. I didn't get my degree till age 30 and could only afford to move out of my parents' house a year later, at 31. Not only was a single, but didn't get dates at all during that entire time. I was nearly 36, almost 2 decades into adult life if you go by "18", before I finally met the first woman who really loved me. Therefore, I had a strong interest in AGRs, because I was seeking one myself. That interest lasted for years after because of how strongly I felt about it.
However, now my life is pretty much a done deal. My wife and I have a stable, long-lasting marriage and we have two kids; one grown and the other one growing up fast. I love my wife and would never think of leaving her for someone else, and I know she feels the same about me. At nearly 60, I feel the end of my life looming. I still support AGRs because I will always believe people should be free to seek their happiness as long as it's legal and they're not hurting anyone. However, that 60-year old marker is really hitting me right now and it has me thinking about things beyond this life.
Your belief is not what I would consider the standard church teaching. The standard church teaching is that marriage is not in Heaven because there is no "need" for it. We will be "married to Jesus", and our earthly marriages dissolved because they were only a picture or signpost of our greater marriage to Jesus. They hinge all of that belief on three verses of scripture where Jesus answers a trick, heckling question by the Sadducees asking Him to solve an impossible puzzle about seven men who married the same woman. "Who's wife will she be in Heaven?" If you grew up in the (Catholic?) church I'm sure you're familiar with the story. I'm a subscriber to several YouTube videos that discuss this topic. They argue that our marriage to Jesus is symbolic, and that Jesus (nor the Bible) never says any of the things "the church" says about "why" there is no marriage in Heaven (no need for it because of no procreation, no loneliness, we'll be with Jesus, etc.). They further argue that the "marriage" Jesus referred to in that story was only a legal contract and not the union of souls that Adam and Eve had in Eden. I could go on, but this is not a forum for theological discussions so I'll end it here.
During the first nearly 2 decades of my adult life, not only could I not get a girl, was stuck living at home, saw all the guys in my college classes and church youth groups with their girlfriends/fiancés and getting married; but I then had to go to church or read Christian books that shoved the theology down my throat that when we go to Heaven we "won't be married" and we'll be "married to Jesus instead". You can imagine how all of that made me feel!