<human>: Can you provide a brief rundown of the text in within 3 sentences?

So 5 weeks ago I went through my first break up. My then boyfriend of 10 months had been overseas for the past 3 months and things were kind of rough. 

He was distant and it was clear I was no longer a top priority for him. I went over to his house the night after a big fight over messenger and thought we were going to talk things through but he decided to end it. He said, 'I love you but I'm not as in love with you as I was before.'
That hurt a lot but it also didn't make sense. If you love someone wouldn't you still give it a shot?

Just a month before this he had proclaimed I was the love of his life (I never said it back) and told me he didn't want to leave me for that long again. I believed him. 

I talked to him on Wednesday and he told me he fell out of love with me while he was overseas but he never mentioned any doubts before the night he broke up with me. 

Am I crazy for thinking there's something more to this? Was there another girl or did I do something wrong? Or is he as confused as I am? I tried to be as supportive as possible while he was overseas even though it was hard for me. 

Should I cut him off and move on or give him time and try to work it out?
<bot>: waited 3 months for my boyfriend of 10 months to return from an overseas trip. He broke up with me 2 weeks after he got back.