Am I being silly?

I've been with my boyfriend for 4.years and I feel like the spark has gone from our relationship. We separated for a few months a while ago so we could work on himself due to mental health issues. We got back together and at first it was great, I had butterflies like I did when we first started dating. But lately I feel like it's more of chore in the relationship. When I send him snapchats, he hardly ever replies. It's not a big issues but I feel like we don't really communicate. When are also meant to go see the new starwars film next week and we kept forgetting it buy the tickets. I messaged him a few times over the last few days reminding him about it and he never replied. When I saw him this morning I brought it up and he just shrugged and was like 'year just book the tickets I can go whenever, you're the one working so go when you're free'. We tried to book it online but my giftcard wouldn't work. I had to leave for work and won't be back in town for a few days. I asked if he could go buy them, gave him he giftcard and my eftpos card. He didn't seem that happy about having to go do it and just had a kind of whatever attitude. I just feel kind of second best at the moment and don't feel like he wants to spend time with me. His friends were over this morning and he looked much more happier around them and I felt like I was intruding. He also didn't really acknowledge me until they left. Any advice would be great please.