Getting too close to cheating :(

My feelings for my boyfriend have decreased and i don't know wether i'm actually not in love with him anymore or if i'm just depressed myself. I was on vacations for a while and hoped it would be more clear now, being apart for a while. It isn't.

For a couple of weeks i have been talking to another guy who i have know for some time now. I know how terrible it is of me to think of him while not communicating with my boyfriend.

Every time the conversations of me and that guy seem to get 'too much' i go to sleep.

It is wrong to do this but i keep answering when he texts me. I need to say something clear but not bitchy like 'oh yeah by the way, i have a boyfriend'. I need him to know so i can start focussing on what i still have and what i want.

Please don't insult me, i am trying really hard to change . I know what's right and what isn't but i have to share this somehow

UPDATE!

I told the guy that i made a huge mistake talking to him and that i have a boyfriend. It hurt to say that to him but it was the best for this moment.

I'm going to tell my current boyfriend when i know things for sure, i will talk about talk about feelings to him before that. It will be a hard time but i know that things will get better eventually.