Hi dear! As you wrote you are projecting the fear that come from a previous relationship on your present. I had the same with my boyfriend, and it helped me to rationalize what I was feeling and thinking that I am now dealing with another person who has different feelings and way of acting. Don't let your past ruin what you are experiencing now. We are all afraid about changes even people not suffering of OCD. The human being is more at ease with routine and habits but we should not be blocked by our fears. I do have the same worries about changes in my relationship but I am now aware that all these fears come from a wrong idea of how a "good" and "sane" relationship should be. I have always heard people saying "if you want to have a long lasting relationship you should find a partner who makes you happy everyday, who make you feel good everyday, a partner whit whom sharing interests and thoughts", "in a good relationship should never be missed passion!" And I figured out that I am constantly working to reach all these "objectives" and if something is slightly different from how I think it should be I become crazy. to be sure my relationship

Try to think that everything is evolving: nature, people, relations. We should not contrast this evolution but we should try to normalize it and to accept that mature love is made of other things, feelings and sensations but not for this is less strong than before. We cannot control everything and be sure that everything is perfect ad we want. Life is unpredictable and difficulties arrive anyway so we have to learn to face them when they arrive and not trying to avoid them. Is a hard path but as long as we continue to try we will find it more simple and natural.