Need Some Advice (especially from guys)

I have this guy friend whom I’ve been very good friends with for the past four years or so. He has a new g.f. now and that’s cool except we haven’t really hung out much since they started dating. I told him with his last g.f. that I don’t really like it when he treats me like crap just because he’s seeing someone. With his last g.f. he would flat out ignore me whenever he was with her and would take forever to respond to any of my texts or phone calls even when I left a voicemail (which I only do if it’s important). Then whenever he would hang out with me he’d constantly be texting her or talking on the phone to her (so really he wasn’t really spending time with me). It’s not that I was jealous it’s just I’m a chick and unfortunately get a lil emotional about somethings and I just felt he wasn’t respecting or considering my feelings. I understand not hanging out as much when he’s dating someone, but I don’t like feeling like our friendship doesn’t even matter to him. With his current g.f. he’ll at least respond to my texts to say he’s hanging out with her which is nice, but he’s always busy with her. He did promise to hang out with me and said he wouldn’t ditch me and then as soon as his g.f. called him he left me. It made me really  mad because he promised he wouldn’t ditch me and ontop of that they live together so he sees her every day. And i won’t mention why she called him, but I just thought "wow that couldn’t have waited just like 2 hrs so we could hang out like we were suppose to"? It’s like nothing or no one else matters when he’s with a chick and with his last g.f. they had only known each other for 2 weeks when he treated me like that. This one he’s been dating for about a month now and it just makes me feel like our friendship doesn’t mean that much to him. He thought I had no reason to get mad at me when I did and I guess I’m just wondering if I’m just being stupid by feeling hurt and stuff and if I should just let it go. I’m really not jealous, I just wish he’d still make time for me every once in awhile and that when he promises not to ditch me that he won’t (unless it is something really important). I still make time to hang out with him when I’m seeing someone and I just wish he’d do the same for me. I guess I kind of wanted a guys perspective on this, but any advice is appreciated because I really don’t know what to do. It just seems like he’s realy not much of a friend right now because we never hang out anymore and I can’t really count on/rely on him if I need anything because he’s so busy wrapping his life around this one other person. If he’d actually known her for awhile I’d feel a little better about it, but since he’s only known her a month it just really makes me feel like maybe I value our 4 year friendship more than he does.