Guys, I'm currently in a long distance relationship what does this behavior mean? If he's very interested but sending mixed signals what does it mean?

Ok, let me try to explain. So, there's this man online who I am chatting with. No, he's not a catfish. I already established that so don't worry, there's been proof provided. He says after we have talked long distance for a couple months that he has strong feelings for me. I'm not surprised by this as I do have that way with men. No he's not trying to get my money. I'm considered a very attractive woman and have a nice figure so it's not that hard to believe. We talk really well, he knows a lot about me. He seems like the perfect man for me. I really like him. We have a lot in common. But after he confessed his feelings now he's a little distant towards me. He does own a business in his home, which I've seen pictures of, and he works a lot and he says it's a sacrifice just to talk to me each day but he makes time and he says he's just busy all the time. He started being distant when I asked what would happen with us. He said he could visit eventually but he's all the way from the UK and I'm in the US. Long story short, I really like him, he says he really cares about me. But sometimes he seems like he's not that into the conversation but I'm kind of wondering why does he even want to talk to me? He says really sweet encouraging things to me sometimes and I suspected he had feelings for me. But he did say the other day that the reason he doesn't want to talk to me 24/7 is because when you talk to someone too much all the time you can lose interest and he doesn't want that to happen. I dont know if he was referring to himself losing interest or him trying to keep me from losing interest, I do suspect he knows certain tactics of dating related to attraction to make women like you such as redpill and maybe he uses that on me. He told me he knows about things like that. Is he really interested as he assures me thoroughly that he is? It's sad we can't meet in person. He did say he was depressed right now, maybe he's sad about this? What does this mean?

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Also, he says he loves me. Then the next day he's quiet.
Guys, I'm currently in a long distance relationship what does this behavior mean? If he's very interested but sending mixed signals what does it mean?
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