<human>: I'll try to keep this short and factual.

I (26M) have been in a relationship with my gf (26F) for seven years.
A couple of years ago I met this girl (29F), a coworker, who is also in a relationship with 32M. We started talking a lot and became good friends. At times she becomes very flirty and I like that.

During the past 6 months I have developed a strong attraction for this girl and at the same time I realised that I might not be happy with my gf anymore.

So I decided to talk to both about this and:

* my gf is very upset, obviously. I decided to move out for at least a month to make my mind up and I'm not seeing her right now. It's been 2 weeks now and I miss her.

* The other girl confessed to also have feelings for me and that she would totally date me if she were single but that at the moment she doesn't want to end her relationship with her bf because she's happy. 

Now my problem is that if I had a real chance with the girl I'd probably go for it. But I don't.

So, I'm wondering, is it completely unreasonable to think that I can just get this girl out of my mind and just focus and be happy with my gf? She loves me and we have a perfect relationship except for my doubts for this other person in the last months. My idea is that if I succeed in forgetting the other girl I can simply fall in love again with her.

Has anybody experienced a similar situation? Have you guys got any advice?

Give me a shortened version of the text
<bot>: I (26F) have a crush on another girl (29F) who is not interested. Can I go back to my gf (26F) and be happy with her?