It's getting annoying now

I just want to vent here right now. I don't know what's up with my boyfriend lately but every time I suggest a place for us to do/hang out at he turns me down with the "I'm tired" or "It's too far" or "it's already too late, we'll go tomorrow" ( and we don't). I've been understanding him giving him his way but now it's a bit too far. It's been months MONTHS! since we've gone to the beach, the movies, out to eat, a walk to the park alone, just us two spending time together for once. all we've been doing is either being at my place or his and both houses I'm left alone sitting their while he sleeps. it pisses me off as it is that he turns me down but what pissing me off even more is that when it comes to his friend he downs to go whenever, wherever and do whatever. His friends girlfriend I and I don't really talk, I tried so many times trying to have a conversation with her but it only lasts for 2 sentences and she goes and talks to my bf and her bf. So when I talk now i just do the same, which doesn't help, I try here and there to include her but she just stays out then when I'm done talking she talks about stuff only them 3 know (they all worked together) then i stay out cause i was never there when they talk about work and stuff, so i have no clue what's going on or what they're talking about. Yesterday he told his friend he was down to go to the mountains, even though he told me on his birthday (4.05.2017) that this Friday (4.07.17)we were gonna go to the beach and catch a movie out there as well. He turns me down forgot about our plans and agreed quickly to his friend with a yes. I told my bf that I didn't want to go that he can just go by himself and hang out with them and I'll stay home. He got mad, and told me I'm being "selfish" cause if I stay home then he "has" to as well, when my words being said he can "go" by himself without me, since they're his friends. So I told him well u already cancelled on me forgetting that we already had plans for today and blew me off again. So he told me fine, we'll go to the beach, he kissed me said he was sorry to make me feel this way and admitted we haven't spent time alone lately. Well 10 mins ago he called his friend (the friend that invited him to the mountains) and asked if he can come over and if they can work on his car. I got so mad I wanted to cry. When they hung up I asked him how long would it take, he told me "he's not home right now but at 3 he will be I'll say maybe 9 tonight?" And mind u, he just bought a brand new car, 2014 Honda civic, no accidents reported, everything is brand new on it and in it. So why 3-9 to work on ur car????? Am I being selfish or do I have the right to feel this way.. I'm so hurt. He saw me cry and he didn't even care he's mad at me for getting upset about this.