I'm not really looking for long term relationships, more like 5 night stands. But I think I'm too nice and I definitely get girls to fall for me way too fast once I start seeing them. How do I get out of situations where a girl wants to be boyfriend/girlfriend and be exclusive? I always end up disinterested after about 2 months of dating someone and want to move on, which makes it very difficult to dump the girl and they end up hating me when I do.

Edit: Thanks for the feedback guys, I think my problem is that I'm not straight forward enough about my intentions. I've had a few relationships I've been in when I thought I was looking for a "girlfriend" and I just lost interest after a while. Recently, I've realized this happens a lot, so I'm apprehensive to getting into a LTR with someone. I don't lie to the girls I see but I do tend to avoid the subject. I've been conscious about this since my last bad breakup last month (I dumped her). An example, I met a girl last week and we made plans for a date. Beforehand we were texting and asked what I was looking for and I said " To go on a date with a cute girl on Thursday". Her response was "fair enough". I'm also in the military, so on our third date I made sure that she knew there was a good chance I could move/deploy in the near future. Not sure if I'm being straightforward enough. I like what PopularWarfare said and I'll probably use that line to make my intentions more clear.