So Confused! Does He Still Like Me Or Not?

Ok so this is going to be a long one… I’ve been seeing this guy who is in RN Marine training about 2hours away from me for about 3months. I “lost” it to him although this isn’t a HUGE deal for me. I’ve seen him about 4 times (with around a month in between each time) and 3 out of thoose we’ve had sex (the second time quite a few times). But I’ve known him for like at least 3years! This last time he was down for the weekend (just gone) and I saw him on saturday. I told him to come round about 12ish but he text saying I’m not going to leave until a bit later, so he finally got here at 1 but then my mum was coming home at 2 so we had sex once then went out to town for a bit. I was like you should come round tomorrow as my mums out tomorrow and he said he might but he has to drop the car back (he borrows one from his ex-boss). I then text him sunday morning saying something like so you gunna come round?(but a little more interesting) and he didn’t text back. Then I talked to him on facebook at like 12? and he still had the car but had to take it back then but clearly he couldv’e come round in the morning. Last time he came down for the weekend we spent the whole of saturday together at his deserted house and then he came round sunday morning so I was kind of expecting the same thing… So I’m confused because it seems to me as if he doesn’t really want to spend time with me but then when we are actually together it seems like he’s really really into me! Argh! Lol And also we talk on facebook quite a lot (probably 1-5 times a week depending on what’s happening with his training) and when we do he also seems into me and usually is the one to start it. I mean he asked if he was allowed to meet my mum (who he’s already met but I mean as like…Hi I’m seeing your daughter) and he offered for me to meet his but to both I was like nahuh…too scary! Lol I don’t know whether I’m just being paranoid (maybe because I’ve been kind of like this with a few guys before) or he actually isn’t into me. Unfortunately I’m really into him and really want things to work, so I’m kind of scared to ask him whether he still likes me incase he says no, but obviously I don’t want to be an idoit and try hold on to something that’s become nothing. I really don’t get why he would’ve gone off me, he says I’m amazing at sex etc, he says I’m hot blah blah blah and I make him laugh so WHY? Lol I’m just sooo confused! The only thing I can think of is that he may have had a hangover…but why wouldn’t he just tell me that?? Anyway, what’s everyones opinions? Do you think he’s gone off me or not?