One of the main fears of people trying to get back with someone is that they fear being replaced but actually, that can never happen in the truest form. I used to have this fear but then I realised, even though I've had a few different boyfriends, not one of them actually 'replaced' the other. Not one of them was the exact same as another but 'better'. There were some I felt more connected to than others, but nevertheless, the connection was never the same. You can never be replaced because you are never the same as another. Likewise, you can never 'replace' someone with someone else. That means, if you want the relationship you had with someone back but don't have that person but find another and try to make it the same relationship, you will end up disappointed which is why rebound relationships almost never work out. No one will have your sense of humour or your sense of style or your exact same idea of life. The chemistry you have with someone will always be solely yours and theirs together. I have had great chemistry with different people, but it has never been the same kind of chemistry. Even if it seems so similar, it is never the same. You won't be forgotten either. I still remember my small relationships with guys who I wasn't even that into but when I look back, I do remember the good times. Even if your specific person is with someone else, you have to remember that that really is nothing to do with you. It's not the same relationship you had with that person. Your relationship with people is unique because you are unique. People don't forget their old partners when they are with a new partner, in fact, people remember their old partners in the best light when they are with new partners. Because people ultimately get bored and start to look around them every now and then or remember old memories with previous partners that were good. You will never have to worry about being replaced because that just can't happen. Just because it appears that someone is in the place that you once were, next to the person you once were, that doesn't mean they are in the same position that you once were. The way that person interracted with you is unique to you and always will be. I have had several boyfriends, but I've never felt the same way about them all, I've felt more dominant in some relationships, or more submissive in others, I've felt more bored in some and more tense in others, I've felt more attractive in some and less so in others. One boyfriend made me feel much more beautiful than the one I had after him, but the one I had after him made me feel much more relaxed because he wasn't as needy or intense, but then he got to be too relaxed and it got boring. The one after that one made me feel quite attractive but more cooler, I felt like I had more status in his eyes and that made me feel happy until it didn't and so on and so forth. You made your specific person feel things that they will remember in relation to you and won't be replaced. Maybe you made them feel secure, handsome, beautiful, capable, strong, respected, appreciated... Even if their one now makes them feel some things that you felt, it won't be in the same way. Also, your touch is uniquely yours. I've never been touched in the exact same way from two different people. Touch is very important in terms of bonding and memory. Affection too. No two people give the same type of affection. You will not be replaced, even if it seems that they have moved on and don't even speak to you and are with someone else, that doesn't mean you are any less than you always have been. They are not 'moving up' they are just moving around. Even someone who seems to have it all going for them can never replace you, because they are not you. I only count one boyfriend I had as 'less than' my others and that's because of his personality being so nasty and sexist at the end of it, which left a bitter taste in my mouth. As long as you didn't show giant character flaws like that, you won't be forgotten or viewed on negatively by the other person. So don't worry about that, it's not how it really is, it's just how you think it is which only makes it so to you but if you change that thought and see it for how it is, you won't worry about it anymore.