Most Helpful Guy
Listen, communication is key to every relationship. Without communication all relationships are bound to doom. If both partners dont know whats on each other's mind then they will never be on the same page. Obviouclingie clinginess thing has been bothering you for a while and from the beggining. But because you never told him whats on your mind and whats bothering you, he never knew whats the problem and because you kept it in it kept bothering you that it got to the point where you started losing attraction to him. Its not his fault you lost attraction, its your fault. If you never speak up about the stuff that are bothering you in your relationships then you will never be in a stable relationship and ul always break up. Dont expect your bfs to be perfect just like that, you'l have to fix somethings in them and if you werent able to fix or if its not fixable then either learn to accept them for who they are or juat break up and move on.
So what you should right now is just tell your boyfriend whats uo and whats making you start losing attraction to him. If you can't tell him face to face then send him a message telling him what has been bothering you all this time and ask him to fix it. Give him a chance and see how it goes. But remember that you both need to always always always be able to express your mind and thoughts to each other. Had you told him this from the beggining he might have watched hinaelf more and fixed it before you started to lose attraction.
Most Helpful Girl
If he falls into a depression, it is not your fault. You are not responsible for his life circumstances, all you have control over is yourself and your actions. You do not need to pity him. If the relationship is not working, then you have every right to leave. Just be confident and have your eyes on the prize of freedom once you do it. Tell him honestly that the dynamic between the two of you isn't working anymore and that you need to be single again to work on yourself.