I feel deeply for you in this situation and I understand how you are looking for that someone that makes you feel alive agian .

If you dont feel like he is as in love with you as you are with him and you continue to doubt than he is not. But if you start to feel its real make sure you are comfortable with making this big change and he is as well so you dont end up holding a secret blame on each other. If you truly are unhappy is all aspects and he is as well and you make each other you need to do what makes you happy! you are number one in your life remeber that