Breakup, Rebound Relationships and G.I.G.S. (Grass is Greener Syndrome)

I've come to the conclusion that many people confuse rebound relationship vs. grass is greener syndrome. From what I've gather thus far, these following seems to ring true. Rebound Relationship This usually occurs a few weeks to a few months after a breakup. This can happen to all age group. A dumper has a hard time dealing with the breakup and jumps into a relationship without actually getting to know the new person. This person is usually someone they just met. They do this to fill a certain void that the dumpee has left, and by jumping into another relationship it helps them get over the dumpee. However, this type of relationship doesn’t usually last, because the dumper usually doesn’t have enough time to deal with the issues in the previous relationship. This type of relationship usually occurs immediately after the breakup, or starts a couple months before the breakup. The dumper is usually young 20-25yrs old. What happens in this kind of relationship is that the dumper is in a long-term relationship with the dumpee for 2 years or longer, and the couple are about to make a larger commitment to each other. The dumper gets "cold feet" as things are getting stale, boring, and predictable. They start to wonder, what else is out there? Is there anything better out there? Is this all I'm going to have for the rest of my life? If there was someone that the dumper has been talking to for some time, a "just a friend" type of guy or girl. They start fantasizing a relationship with this person. They start hanging out with this person more to see if there are any potential to have a relationship with this person, while still in a relationship with the dumpee. They usually do this consciously, but tells the dumpee that he/she is "just a friend." This is usually when the dumpee starts to get panic, jealous, clingy and needy. The dumpee feels like they are losing their significant other. So, the dumpee begins to freak out and tries to save the relationship. Buying gifts, professing "I love you", paying more attention to the dumper, all the while the dumper is slowly checking out of the relationship. The dumper starts seeing the dumpee in a different light because of their recent behavior. Dumper starts losing respect for the dumpee because they have become "nothing" without the dumper. Then it happens, the dumper dumps the dumpee because they have decided to pursuing a relationship with this "just a friend." And often times gives the reason, "You have pushed me towards him because of your jealousy, neediness" or other like "I love you, but I’m just not in love with you." However, what the dumper doesn't realize is they believe they are "falling in love" with this so called "just a friend". However, in actuality they are just bored and tired of the relationship with the dumpee.