Why can't I have a nice relationship? What am I doing wrong?

I'm a 22-year-old girl, I've been told many times that I'm beautiful, really fun and interesting.
It's really easy for me to get dates, but this is what happens all the time:

1. Guys get obsessed with me in a creepy way and in a short time, for example after 2-3 weeks of meeting, the guy starts saying that he can't live without me and that he needs to talk to me all the time... So I get creeped out/annoyed and decide to stop talking to the guy.


2. The guy isn't being clingy (not texting me all the time and not asking me to see me every day), so I don't get annoyed. Things are going out nice and we're having a good time, but suddenly, after some weeks/a month they stop talking to me.

For example:
Three months ago I met a really nice guy. I liked his personality, I found him attractive and we shared many interests. We were seeing each other once a week. After a month, he said he liked me and we kissed. The next week I invited him to a concert, we were kissing, holding hands, jumping, screaming and we had a great time (he even said he had a lot of fun).
Then he suddenly stopped texting me a week after the concert. I didn't want to be annoying so I only texted him 3 times in a month asking him if he was okay. He did reply the 3 times, he said he was ok, but then he wouldn't say anything else besides that.

Am I doing something wrong?
+1 y
No I didn't have sex with them and usually the guys are from 21 to 24 years old.
+1 y
I've been in this situation a lot of times.

Situation 1, they getting obsessed with me, probably about 7 times. I even had a boyfriend who told me that he would kill himself if I dumped him. (I dumped him anyways).

Situation 2, we having a good time and then they stop talking to me, probably about 5 times.
Why can't I have a nice relationship? What am I doing wrong?
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