<human>: [Gay - me 26 m / him 23 m] I just exited (4 months ago) a 6-year relationship that I thought was going to be life-long (with a manipulative alcoholic narcissist). I was single for a few months. Now, I'm dating this sweet, loving dude who I have amazing sex with (I actually thought I was asexual for most of my adult life, but apparently I just never found the right partner...) 

He really values his time with his friends and isn't as clingy or needy as my ex. We don't stay in constant contact through the day like I did in my last relationship. We only sleep at eachother's houses a couple nights a week. 

He has told me about plans for 9-12 months from now for moving in with his two best friends (also gay young men.) I worry that he's going to live a party life when he moves out and will end up getting drunk and cheating on me. I also have a bit of jealousy because what if in 9-12 months I want to move out with him?

Just, ugh. For some reason, I have this constant fear that he's going to leave. He's given no sign of that and has been nothing but loving and sweet and attentive. But I can help but fear that he's going to find someone better just around the corner or I'm going to wake up to an "I'm just not that into a relationship right now" text. 

Is this a result of my previous messes of relationships (relationships with liars and narcissists) or do you think this is a real fear?

Can you condense the text into three sentences or less?
<bot>: New relationship, comparing to old relationship, full of fear, and have an unfounded fear that he's going to leave.