Search Results: should i wait or ask her out

We have chemistry and tend to finish each other's sentences. Here are some signs but not sure if i'm reading into things too much:

1. he chooses to sit at desks near me/next to me/in my line of sight

2. on days where he doesn't sit with me as he has to sit with his team across the floor, he stands up and looks at me/for me from there (and comes over to my side to say hi and chat before he leaves office)

3. We mirror each other when sitting near each other

4. He once asked me/joked if he could join my team

5. we both stay late in office, and it feels we're now secretly coordinating when we leave -e. g. I'll pretend to work until i see him pack up, and he does the same... if i pack up first he suddenly has to leave as well. If he packs up first he asks if he should wait for me and we usually end up leaving office together almost everyday

6. he looks at my waist/down at my legs sometimes while I'm talking to him and maintaining eye contact with him

7. he keeps coming over to ask my opinion on things

8. when saying goodbye, he initiates a high/low/side five. But yesterday, he continued to grasp my hand for a few seconds and smiled at me during it, before he 'left'. He came back seconds later to ask me another opinion and we ended up leaving office together

9. He NEVER mentions his girlfriend to me. I only know of her through other co-workers. When i ask him his weekend plans, or a holiday he just came back from (i knew he went with his girlfriend), he talks as if it's just him alone doing things

10. sometimes he gets quite fidgety while talking to me

11. he tries to find out my interests. When he found out i live in a certain neighbourhood where he hangs out a lot (e. g. let's call it 'oxford'), he said 'oh so we have oxford in common? I need friends in Oxford..'

12. He's super busy but went out of his way to teach me what he does (for an hour! i didn't even ask), and turned it into a playful role-play like 'ok now your turn to do the same, i'm ready for my lesson'

So my boyfriend and I have been together for the last 3 years and been the best girlfriend possible for him. I sacrifice what I can/need to in order for him to be happy like spending money on gifts or whatever he needs with other things. Even though this might sound unhealthy, I went past my comfort zones/boundaries to please him. For example, he started to withhold sex because I wouldn’t get on birth control for him. I got on a method, not one he preferred, and it was fine for some time until he wanted more (the method he stated at the beginning). I told him I wasn’t comfortable with that but had to get it in order to receive anything intimate again.

also when you read this, please don’t judge.

recently though, he took it upon himself to purchase me a laptop that I need for graduate school which I appreciated a lot. However, he planned on buying it from a sketchy site and I begged him to buy it elsewhere. He said he wanted to do what he want, and got the laptop. I drove a long way to get it from him, and when I got home the laptop isn’t connecting to the internet which is a huge problem. Then the responsibility fell onto me to solve it when he could’ve made sure the laptop was fine while it was in his possession for a week or so. I had to drive more to a repair store and wait hours for them to tell me it cannot be fixed. I told him after and he claimed that the repair “isn’t that much,” and how I should’ve requested a cheaper laptop instead for school. I asked for the return label so I can mail it off to get a refund for him since he wasn’t going to do that and he said he was “too tired” to do so but wouldn’t give me his account information so I can do it myself. I’m not sure how to deal with this behavior or what to think of it considering how well I’ve treated him and he didn’t have to worry about a thing. Like I bought him a phone last year and it’s been working fine since. What should I do? Please explain.