Potential Boyf Issues

One of those 'help idk what to do in my relationship' threads, I just really need some help and its stressing me out.Preface: might be paranoia because I'm generally a paranoid person (I do suppress it a lot though so I don't appear it) but just getting some outside advice will help me a lot to gain some clarity.Basically, came out of a shitty relationship several months ago and I have a long distance friend (who I've seen semi frequently during holiday periods) that I was really close to and after I left the shitty relationship we decided we'd give it a go actually trying to do a long distance relationship (something I'd do for very few people).Always had something for the guy, just the distance has put us both off for awhile but tbh I realise how much I love him and I can wait to move closer to him if it means I can spend the rest of my life with him, which we've talked about loads.Problem: something has changed over the last few days and idk what. I say 'love you' pretty regularly whenever we kind of said we were gonna stop messaging for whatever reason, and usually he would say 'love you too' back. He's stopped doing this. It also feels like he doesn't want to talk to me as much, like he'll just never message me first now (which he would do if I didn't beat him to it). These are little things but this is how my past relationship went to shit, slowly I just get pushed out until I'm basically ignored for full days and then I get told its my fault for wanting to talk or see him.I need to know how to approach this, I'm seeing him in a weeks time roughly, going to stay with him which previously he'd been really excited for. I just hate being strung along by someone, like I've had that happen to me so many times and I just can't take that anymore.He has had a shit couple of days but that's nothing to do with me, all I try to do is make him feel better about it.I love the guy loads and just need some advice. Am I being overly paranoid? Should I ask him? Should I do something else? Any advice would be really appreciated. Thanks a lot.