<human>: Hi I'll try to explain this as quick as possible. Basically with every single girl I've dated, by the 4th month or so I am ready to move on to my next relationship.

At the start of each relationship, I think "This is the one, this is the one I make happy for a long time." (Not forever, but at least a year.). I wan't to do this, that and the third for her in the beginning. But like clockwork by the 4th month, everything I used to love about them makes me hate them. I lose all motivation to keep them around in my life.

It also makes me feel like a dickbag because up until the week or so I lose interest, I am doing and saying everything to be the perfect boyfriend. 

I date casually as well, but this would apply to someone I become enamored with. Like I said my desire to be happy with them and want them is long enough that it can't really be casual (Nor do I like the idea of her being with anyone else.). But it's short enough that it never really is a long term relationship.

Now a few facts that me and a few friends realized together about this.

* I don't go into the relationship expecting it to end so soon.
* My first real relationship was a year, 2nd was 8 months, everything after averages around 4 months.              
However the first and second relationships ended more or less due to the same reasons of me no longer feeling the same way but I "tried" just because I thought I would never get laid again.
* The desire to go out "hunting" for a girl develops as well during the later parts of the relationship. And I am resentful at my girlfriends for keeping me down.  

The only real answers I was able to come up with was:

* Immaturity
* Wait for the right girl
* This is normal and I'm forcing it

Could you distill the essence of the text into 1-3 sentences?
<bot>: Every relationship I'm in, I get bored of within 4 months and want to be out. I truly want to find out why and fix it, so I can be in a longer term relationship.